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hilbert_IF.h
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hilbert_IF.h
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// FIR filters for the IF version of QCX++
// IF filters centered on 11029, bandwidth 3.75khz. Place BFO at about 13200 hz.
// Number of Filter Coefficients
#define HILBERT_AM 40
#define HILBERT_IF 80
const int16_t h90p[HILBERT_AM] = {
(int16_t)( 32767.0 * 0.001093845249714940 ),
(int16_t)( 32767.0 * 0.001276575861434480 ),
(int16_t)( 32767.0 * 0.002572952002333098 ),
(int16_t)( 32767.0 * 0.002754214831374080 ),
(int16_t)( 32767.0 * 0.004964316815693444 ),
(int16_t)( 32767.0 * 0.005153256030368707 ),
(int16_t)( 32767.0 * 0.008583223638861480 ),
(int16_t)( 32767.0 * 0.008856289942329405 ),
(int16_t)( 32767.0 * 0.013860403896389439 ),
(int16_t)( 32767.0 * 0.014436847349885046 ),
(int16_t)( 32767.0 * 0.021485931828992614 ),
(int16_t)( 32767.0 * 0.022893087444812492 ),
(int16_t)( 32767.0 * 0.032808191342139893 ),
(int16_t)( 32767.0 * 0.036339828455305138 ),
(int16_t)( 32767.0 * 0.051126287391142555 ),
(int16_t)( 32767.0 * 0.060579827327981832 ),
(int16_t)( 32767.0 * 0.087424737489839435 ),
(int16_t)( 32767.0 * 0.120056058132125915 ),
(int16_t)( 32767.0 * 0.211946597177323448 ),
(int16_t)( 32767.0 * 0.631694063898862512 ),
(int16_t)( 32767.0 * -0.631694063898602498 ),
(int16_t)( 32767.0 * -0.211946597177605223 ),
(int16_t)( 32767.0 * -0.120056058132008217 ),
(int16_t)( 32767.0 * -0.087424737489942339 ),
(int16_t)( 32767.0 * -0.060579827327917661 ),
(int16_t)( 32767.0 * -0.051126287391199662 ),
(int16_t)( 32767.0 * -0.036339828455263762 ),
(int16_t)( 32767.0 * -0.032808191342175760 ),
(int16_t)( 32767.0 * -0.022893087444786613 ),
(int16_t)( 32767.0 * -0.021485931829015630 ),
(int16_t)( 32767.0 * -0.014436847349868656 ),
(int16_t)( 32767.0 * -0.013860403896403349 ),
(int16_t)( 32767.0 * -0.008856289942318194 ),
(int16_t)( 32767.0 * -0.008583223638870095 ),
(int16_t)( 32767.0 * -0.005153256030362134 ),
(int16_t)( 32767.0 * -0.004964316815698866 ),
(int16_t)( 32767.0 * -0.002754214831370511 ),
(int16_t)( 32767.0 * -0.002572952002335915 ),
(int16_t)( 32767.0 * -0.001276575861432673 ),
(int16_t)( 32767.0 * -0.001093845249715955 )
};
const int16_t h00m[HILBERT_AM] = {
(int16_t)( 32767.0 * -0.001093845249715580 ),
(int16_t)( 32767.0 * 0.001276575861433755 ),
(int16_t)( 32767.0 * -0.002572952002334441 ),
(int16_t)( 32767.0 * 0.002754214831372127 ),
(int16_t)( 32767.0 * -0.004964316815696075 ),
(int16_t)( 32767.0 * 0.005153256030365302 ),
(int16_t)( 32767.0 * -0.008583223638866050 ),
(int16_t)( 32767.0 * 0.008856289942323620 ),
(int16_t)( 32767.0 * -0.013860403896395392 ),
(int16_t)( 32767.0 * 0.014436847349876460 ),
(int16_t)( 32767.0 * -0.021485931829004022 ),
(int16_t)( 32767.0 * 0.022893087444799766 ),
(int16_t)( 32767.0 * -0.032808191342158066 ),
(int16_t)( 32767.0 * 0.036339828455283010 ),
(int16_t)( 32767.0 * -0.051126287391168403 ),
(int16_t)( 32767.0 * 0.060579827327947436 ),
(int16_t)( 32767.0 * -0.087424737489887688 ),
(int16_t)( 32767.0 * 0.120056058132059371 ),
(int16_t)( 32767.0 * -0.211946597177440688 ),
(int16_t)( 32767.0 * 0.631694063898506464 ),
(int16_t)( 32767.0 * 0.631694063898958547 ),
(int16_t)( 32767.0 * -0.211946597177487983 ),
(int16_t)( 32767.0 * 0.120056058132074830 ),
(int16_t)( 32767.0 * -0.087424737489894058 ),
(int16_t)( 32767.0 * 0.060579827327952057 ),
(int16_t)( 32767.0 * -0.051126287391173787 ),
(int16_t)( 32767.0 * 0.036339828455285911 ),
(int16_t)( 32767.0 * -0.032808191342157574 ),
(int16_t)( 32767.0 * 0.022893087444799343 ),
(int16_t)( 32767.0 * -0.021485931829004195 ),
(int16_t)( 32767.0 * 0.014436847349877250 ),
(int16_t)( 32767.0 * -0.013860403896397382 ),
(int16_t)( 32767.0 * 0.008856289942323984 ),
(int16_t)( 32767.0 * -0.008583223638865515 ),
(int16_t)( 32767.0 * 0.005153256030365543 ),
(int16_t)( 32767.0 * -0.004964316815696229 ),
(int16_t)( 32767.0 * 0.002754214831372464 ),
(int16_t)( 32767.0 * -0.002572952002334568 ),
(int16_t)( 32767.0 * 0.001276575861433399 ),
(int16_t)( 32767.0 * -0.001093845249715312 )
};
// These filters did not suppress the image very well at all
// Perhaps the very small values do not convert to integers well
// Iowa Hills Hilbert transform filter coefficients
/***********
const int16_t h45p[HILBERT_IF] = {
(int16_t)( 32767.0 * 80.05385753639430E-12 ),
(int16_t)( 32767.0 * 0.000342660820466914 ),
(int16_t)( 32767.0 * 9.724321739574860E-12 ),
(int16_t)( 32767.0 * -0.001068463839922550 ),
(int16_t)( 32767.0 * -93.13143161415800E-12 ),
(int16_t)( 32767.0 * 0.001516961769629002 ),
(int16_t)( 32767.0 * 115.5208793649380E-12 ),
(int16_t)( 32767.0 * -0.000886837872828337 ),
(int16_t)( 32767.0 * -62.22340865776690E-12 ),
(int16_t)( 32767.0 * -0.001319493336881212 ),
(int16_t)( 32767.0 * -31.84191609941880E-12 ),
(int16_t)( 32767.0 * 0.004774164407010737 ),
(int16_t)( 32767.0 * 105.0458332537510E-12 ),
(int16_t)( 32767.0 * -0.008086993052586727 ),
(int16_t)( 32767.0 * -109.4268767894900E-12 ),
(int16_t)( 32767.0 * 0.009107197461603246 ),
(int16_t)( 32767.0 * 42.11450962715460E-12 ),
(int16_t)( 32767.0 * -0.005799032466921959 ),
(int16_t)( 32767.0 * 52.79027108977950E-12 ),
(int16_t)( 32767.0 * -0.002571809672040901 ),
(int16_t)( 32767.0 * -113.1089008684110E-12 ),
(int16_t)( 32767.0 * 0.014443825682595102 ),
(int16_t)( 32767.0 * 99.32303500758000E-12 ),
(int16_t)( 32767.0 * -0.025704342903447260 ),
(int16_t)( 32767.0 * -20.46565627295120E-12 ),
(int16_t)( 32767.0 * 0.030505908018276781 ),
(int16_t)( 32767.0 * -71.79769698907010E-12 ),
(int16_t)( 32767.0 * -0.023069070775536202 ),
(int16_t)( 32767.0 * 117.0195772870640E-12 ),
(int16_t)( 32767.0 * -0.000072743967749214 ),
(int16_t)( 32767.0 * -85.57476387853500E-12 ),
(int16_t)( 32767.0 * 0.038223665197083416 ),
(int16_t)( 32767.0 * -1.930025190962630E-12 ),
(int16_t)( 32767.0 * -0.085878923512555230 ),
(int16_t)( 32767.0 * 88.15772351795450E-12 ),
(int16_t)( 32767.0 * 0.133709955394534064 ),
(int16_t)( 32767.0 * -116.6077978388810E-12 ),
(int16_t)( 32767.0 * -0.171008267780299511 ),
(int16_t)( 32767.0 * 68.63523646401720E-12 ),
(int16_t)( 32767.0 * 0.188829894192167030 ),
(int16_t)( 32767.0 * 24.33264671913590E-12 ),
(int16_t)( 32767.0 * -0.182760694114483507 ),
(int16_t)( 32767.0 * -101.3860353355130E-12 ),
(int16_t)( 32767.0 * 0.154313060850678058 ),
(int16_t)( 32767.0 * 112.0392391051050E-12 ),
(int16_t)( 32767.0 * -0.110445330045015472 ),
(int16_t)( 32767.0 * -49.30822064417430E-12 ),
(int16_t)( 32767.0 * 0.061379496933527546 ),
(int16_t)( 32767.0 * -45.71276049076500E-12 ),
(int16_t)( 32767.0 * -0.017506706751764928 ),
(int16_t)( 32767.0 * 110.7741303671310E-12 ),
(int16_t)( 32767.0 * -0.013530419254779181 ),
(int16_t)( 32767.0 * -103.2545343489630E-12 ),
(int16_t)( 32767.0 * 0.028613966757790085 ),
(int16_t)( 32767.0 * 28.08468046100180E-12 ),
(int16_t)( 32767.0 * -0.029301330661600698 ),
(int16_t)( 32767.0 * 65.48346391330050E-12 ),
(int16_t)( 32767.0 * 0.020492516725196541 ),
(int16_t)( 32767.0 * -116.1453670702320E-12 ),
(int16_t)( 32767.0 * -0.008271444578964816 ),
(int16_t)( 32767.0 * 90.70888954324390E-12 ),
(int16_t)( 32767.0 * -0.002210439494971992 ),
(int16_t)( 32767.0 * -5.840479814386180E-12 ),
(int16_t)( 32767.0 * 0.008084572325744534 ),
(int16_t)( 32767.0 * -82.85484273745000E-12 ),
(int16_t)( 32767.0 * -0.009027037586288989 ),
(int16_t)( 32767.0 * 117.2650349144410E-12 ),
(int16_t)( 32767.0 * 0.006572683190323061 ),
(int16_t)( 32767.0 * -74.84490867765340E-12 ),
(int16_t)( 32767.0 * -0.002953289525366984 ),
(int16_t)( 32767.0 * -16.61279937535080E-12 ),
(int16_t)( 32767.0 * 0.000015503832670567 ),
(int16_t)( 32767.0 * 97.18677072606840E-12 ),
(int16_t)( 32767.0 * 0.001381656200352246 ),
(int16_t)( 32767.0 * -114.0864087859520E-12 ),
(int16_t)( 32767.0 * -0.001377953785752988 ),
(int16_t)( 32767.0 * 56.23920198484800E-12 ),
(int16_t)( 32767.0 * 0.000693157562759766 ),
(int16_t)( 32767.0 * 38.45476325905290E-12 ),
(int16_t)( 32767.0 * -0.000083110335932051 )
};
// Iowa Hills Hilbert transform filter coefficients
const int16_t h45m[HILBERT_IF] = {
(int16_t)( 32767.0 * -0.000083110335930505 ),
(int16_t)( 32767.0 * 38.45457228652620E-12 ),
(int16_t)( 32767.0 * 0.000693157562758334 ),
(int16_t)( 32767.0 * 56.23979715121920E-12 ),
(int16_t)( 32767.0 * -0.001377953785752139 ),
(int16_t)( 32767.0 * -114.0872536829230E-12 ),
(int16_t)( 32767.0 * 0.001381656200352148 ),
(int16_t)( 32767.0 * 97.18726461066120E-12 ),
(int16_t)( 32767.0 * 0.000015503832670030 ),
(int16_t)( 32767.0 * -16.61206438846530E-12 ),
(int16_t)( 32767.0 * -0.002953289525366120 ),
(int16_t)( 32767.0 * -74.84756777872450E-12 ),
(int16_t)( 32767.0 * 0.006572683190322282 ),
(int16_t)( 32767.0 * 117.2695391058030E-12 ),
(int16_t)( 32767.0 * -0.009027037586288728 ),
(int16_t)( 32767.0 * -82.85991511916080E-12 ),
(int16_t)( 32767.0 * 0.008084572325745106 ),
(int16_t)( 32767.0 * -5.837249943796780E-12 ),
(int16_t)( 32767.0 * -0.002210439494973461 ),
(int16_t)( 32767.0 * 90.71032184921280E-12 ),
(int16_t)( 32767.0 * -0.008271444578962752 ),
(int16_t)( 32767.0 * -116.1534115313020E-12 ),
(int16_t)( 32767.0 * 0.020492516725194601 ),
(int16_t)( 32767.0 * 65.49777995062670E-12 ),
(int16_t)( 32767.0 * -0.029301330661599890 ),
(int16_t)( 32767.0 * 28.06769016575860E-12 ),
(int16_t)( 32767.0 * 0.028613966757791411 ),
(int16_t)( 32767.0 * -103.2416859762970E-12 ),
(int16_t)( 32767.0 * -0.013530419254783261 ),
(int16_t)( 32767.0 * 110.7741708029820E-12 ),
(int16_t)( 32767.0 * -0.017506706751758180 ),
(int16_t)( 32767.0 * -45.73404905364100E-12 ),
(int16_t)( 32767.0 * 0.061379496933519080 ),
(int16_t)( 32767.0 * -49.26039051588080E-12 ),
(int16_t)( 32767.0 * -0.110445330045006923 ),
(int16_t)( 32767.0 * 111.9647695115760E-12 ),
(int16_t)( 32767.0 * 0.154313060850671313 ),
(int16_t)( 32767.0 * -101.2907924647770E-12 ),
(int16_t)( 32767.0 * -0.182760694114480232 ),
(int16_t)( 32767.0 * 24.22747809389750E-12 ),
(int16_t)( 32767.0 * 0.188829894192168030 ),
(int16_t)( 32767.0 * 68.73702487024880E-12 ),
(int16_t)( 32767.0 * -0.171008267780304479 ),
(int16_t)( 32767.0 * -116.6937423799360E-12 ),
(int16_t)( 32767.0 * 0.133709955394541807 ),
(int16_t)( 32767.0 * 88.21923598697030E-12 ),
(int16_t)( 32767.0 * -0.085878923512563918 ),
(int16_t)( 32767.0 * -1.964210510936590E-12 ),
(int16_t)( 32767.0 * 0.038223665197091153 ),
(int16_t)( 32767.0 * -85.56501344892390E-12 ),
(int16_t)( 32767.0 * -0.000072743967754694 ),
(int16_t)( 32767.0 * 117.0271129431110E-12 ),
(int16_t)( 32767.0 * -0.023069070775533523 ),
(int16_t)( 32767.0 * -71.81363341198490E-12 ),
(int16_t)( 32767.0 * 0.030505908018276604 ),
(int16_t)( 32767.0 * -20.44933700795100E-12 ),
(int16_t)( 32767.0 * -0.025704342903448741 ),
(int16_t)( 32767.0 * 99.31162177001600E-12 ),
(int16_t)( 32767.0 * 0.014443825682597200 ),
(int16_t)( 32767.0 * -113.1042940968270E-12 ),
(int16_t)( 32767.0 * -0.002571809672042732 ),
(int16_t)( 32767.0 * 52.79150213628310E-12 ),
(int16_t)( 32767.0 * -0.005799032466920919 ),
(int16_t)( 32767.0 * 42.11000704368010E-12 ),
(int16_t)( 32767.0 * 0.009107197461603111 ),
(int16_t)( 32767.0 * -109.4218493430390E-12 ),
(int16_t)( 32767.0 * -0.008086993052587286 ),
(int16_t)( 32767.0 * 105.0421727753040E-12 ),
(int16_t)( 32767.0 * 0.004774164407011606 ),
(int16_t)( 32767.0 * -31.84027142519440E-12 ),
(int16_t)( 32767.0 * -0.001319493336881961 ),
(int16_t)( 32767.0 * -62.22341718019960E-12 ),
(int16_t)( 32767.0 * -0.000886837872828089 ),
(int16_t)( 32767.0 * 115.5201098097410E-12 ),
(int16_t)( 32767.0 * 0.001516961769629474 ),
(int16_t)( 32767.0 * -93.13066420060300E-12 ),
(int16_t)( 32767.0 * -0.001068463839923728 ),
(int16_t)( 32767.0 * 9.723935795121400E-12 ),
(int16_t)( 32767.0 * 0.000342660820468482 ),
(int16_t)( 32767.0 * 80.05390366653850E-12 )
};
**********/
// 80 tap FIR, center .3, width .16 Kaiser window
// bfo at about 8800
const int16_t RoofFir[80] = {
(int16_t)( 32767.0 * 71.06351070239580280E-6 ),
(int16_t)( 32767.0 * 19.85313193129400840E-6 ),
(int16_t)( 32767.0 * -121.3790818933801740E-6 ),
(int16_t)( 32767.0 * -200.3051317257791770E-6 ),
(int16_t)( 32767.0 * -95.14710055182058570E-6 ),
(int16_t)( 32767.0 * 84.17326325069524270E-6 ),
(int16_t)( 32767.0 * 130.2446425805603670E-6 ),
(int16_t)( 32767.0 * 43.67846049425442350E-6 ),
(int16_t)( 32767.0 * -5.686987548789978140E-9 ),
(int16_t)( 32767.0 * 16.68044201856610440E-6 ),
(int16_t)( 32767.0 * -38.70957469591743920E-6 ),
(int16_t)( 32767.0 * -34.05073469262185880E-6 ),
(int16_t)( 32767.0 * 364.5253193071991400E-6 ),
(int16_t)( 32767.0 * 904.5564670640618490E-6 ),
(int16_t)( 32767.0 * 614.7883489150341350E-6 ),
(int16_t)( 32767.0 * -780.1331586953290300E-6 ),
(int16_t)( 32767.0 * -0.001830352956934547 ),
(int16_t)( 32767.0 * -0.001114535153390886 ),
(int16_t)( 32767.0 * 110.4230901450739570E-6 ),
(int16_t)( 32767.0 * -802.6251452398728360E-6 ),
(int16_t)( 32767.0 * -0.002944486742898358 ),
(int16_t)( 32767.0 * -0.001007617140467440 ),
(int16_t)( 32767.0 * 0.007131316169211580 ),
(int16_t)( 32767.0 * 0.013662244710962593 ),
(int16_t)( 32767.0 * 0.007764972243890286 ),
(int16_t)( 32767.0 * -0.008705912413746563 ),
(int16_t)( 32767.0 * -0.019007653383283248 ),
(int16_t)( 32767.0 * -0.011670248719747452 ),
(int16_t)( 32767.0 * 0.001604130908019348 ),
(int16_t)( 32767.0 * 2.857446685901171790E-6 ),
(int16_t)( 32767.0 * -0.012861504412299973 ),
(int16_t)( 32767.0 * -0.005141480965084769 ),
(int16_t)( 32767.0 * 0.038668181811153765 ),
(int16_t)( 32767.0 * 0.077907474844438315 ),
(int16_t)( 32767.0 * 0.047256504105910965 ),
(int16_t)( 32767.0 * -0.058441528156031597 ),
(int16_t)( 32767.0 * -0.149237356492312068 ),
(int16_t)( 32767.0 * -0.119904879305599565 ),
(int16_t)( 32767.0 * 0.028588428561923160 ),
(int16_t)( 32767.0 * 0.168944101752888820 ),
(int16_t)( 32767.0 * 0.168944101752888820 ),
(int16_t)( 32767.0 * 0.028588428561923160 ),
(int16_t)( 32767.0 * -0.119904879305599565 ),
(int16_t)( 32767.0 * -0.149237356492312068 ),
(int16_t)( 32767.0 * -0.058441528156031597 ),
(int16_t)( 32767.0 * 0.047256504105910965 ),
(int16_t)( 32767.0 * 0.077907474844438315 ),
(int16_t)( 32767.0 * 0.038668181811153765 ),
(int16_t)( 32767.0 * -0.005141480965084769 ),
(int16_t)( 32767.0 * -0.012861504412299973 ),
(int16_t)( 32767.0 * 2.857446685901171790E-6 ),
(int16_t)( 32767.0 * 0.001604130908019348 ),
(int16_t)( 32767.0 * -0.011670248719747452 ),
(int16_t)( 32767.0 * -0.019007653383283248 ),
(int16_t)( 32767.0 * -0.008705912413746563 ),
(int16_t)( 32767.0 * 0.007764972243890286 ),
(int16_t)( 32767.0 * 0.013662244710962593 ),
(int16_t)( 32767.0 * 0.007131316169211580 ),
(int16_t)( 32767.0 * -0.001007617140467440 ),
(int16_t)( 32767.0 * -0.002944486742898358 ),
(int16_t)( 32767.0 * -802.6251452398728360E-6 ),
(int16_t)( 32767.0 * 110.4230901450739570E-6 ),
(int16_t)( 32767.0 * -0.001114535153390886 ),
(int16_t)( 32767.0 * -0.001830352956934547 ),
(int16_t)( 32767.0 * -780.1331586953290300E-6 ),
(int16_t)( 32767.0 * 614.7883489150341350E-6 ),
(int16_t)( 32767.0 * 904.5564670640618490E-6 ),
(int16_t)( 32767.0 * 364.5253193071991400E-6 ),
(int16_t)( 32767.0 * -34.05073469262185880E-6 ),
(int16_t)( 32767.0 * -38.70957469591743920E-6 ),
(int16_t)( 32767.0 * 16.68044201856610440E-6 ),
(int16_t)( 32767.0 * -5.686987548789978140E-9 ),
(int16_t)( 32767.0 * 43.67846049425442350E-6 ),
(int16_t)( 32767.0 * 130.2446425805603670E-6 ),
(int16_t)( 32767.0 * 84.17326325069524270E-6 ),
(int16_t)( 32767.0 * -95.14710055182058570E-6 ),
(int16_t)( 32767.0 * -200.3051317257791770E-6 ),
(int16_t)( 32767.0 * -121.3790818933801740E-6 ),
(int16_t)( 32767.0 * 19.85313193129400840E-6 ),
(int16_t)( 32767.0 * 71.06351070239580280E-6 )
};
/*
// bandpass filter. Center about 5900, width about 3600.
const int16_t RoofFir[40] = {
(int16_t)( 32767.0 * 0.008479789560330429 ),
(int16_t)( 32767.0 * 0.010303685677865215 ),
(int16_t)( 32767.0 * 0.002513377070874807 ),
(int16_t)( 32767.0 * -0.011633491842526395 ),
(int16_t)( 32767.0 * -0.020504986935017920 ),
(int16_t)( 32767.0 * -0.015219949995615194 ),
(int16_t)( 32767.0 * -549.0859774657649270E-6 ),
(int16_t)( 32767.0 * 0.008267715632325316 ),
(int16_t)( 32767.0 * 0.002615357607486427 ),
(int16_t)( 32767.0 * -0.006503501148590152 ),
(int16_t)( 32767.0 * 0.002399018029851485 ),
(int16_t)( 32767.0 * 0.034701413608051020 ),
(int16_t)( 32767.0 * 0.063614940053456082 ),
(int16_t)( 32767.0 * 0.048358931305125238 ),
(int16_t)( 32767.0 * -0.023494237986061154 ),
(int16_t)( 32767.0 * -0.110360675336104580 ),
(int16_t)( 32767.0 * -0.140575664337283829 ),
(int16_t)( 32767.0 * -0.073146791913876741 ),
(int16_t)( 32767.0 * 0.058091404428043211 ),
(int16_t)( 32767.0 * 0.162307127315119232 ),
(int16_t)( 32767.0 * 0.162307127315119232 ),
(int16_t)( 32767.0 * 0.058091404428043211 ),
(int16_t)( 32767.0 * -0.073146791913876741 ),
(int16_t)( 32767.0 * -0.140575664337283829 ),
(int16_t)( 32767.0 * -0.110360675336104580 ),
(int16_t)( 32767.0 * -0.023494237986061154 ),
(int16_t)( 32767.0 * 0.048358931305125238 ),
(int16_t)( 32767.0 * 0.063614940053456082 ),
(int16_t)( 32767.0 * 0.034701413608051020 ),
(int16_t)( 32767.0 * 0.002399018029851485 ),
(int16_t)( 32767.0 * -0.006503501148590152 ),
(int16_t)( 32767.0 * 0.002615357607486427 ),
(int16_t)( 32767.0 * 0.008267715632325316 ),
(int16_t)( 32767.0 * -549.0859774657649270E-6 ),
(int16_t)( 32767.0 * -0.015219949995615194 ),
(int16_t)( 32767.0 * -0.020504986935017920 ),
(int16_t)( 32767.0 * -0.011633491842526395 ),
(int16_t)( 32767.0 * 0.002513377070874807 ),
(int16_t)( 32767.0 * 0.010303685677865215 ),
(int16_t)( 32767.0 * 0.008479789560330429 )
};
*/
// AM detector filter at 12.7k IF freq. About 10k wide.
const int16_t AM12r7fir[30] = {
(int16_t)( 32767 * 0.001550482626183785 ),
(int16_t)( 32767 * 0.003067248151485474 ),
(int16_t)( 32767 * -0.001703394924168867 ),
(int16_t)( 32767 * 0.001438852006155712 ),
(int16_t)( 32767 * -0.013704463164367490 ),
(int16_t)( 32767 * 0.002342319779150199 ),
(int16_t)( 32767 * 0.032836149022814447 ),
(int16_t)( 32767 * -0.018116171681357755 ),
(int16_t)( 32767 * -0.010922165225960134 ),
(int16_t)( 32767 * -0.020215599070424518 ),
(int16_t)( 32767 * -0.023573767008029177 ),
(int16_t)( 32767 * 0.156325893091597889 ),
(int16_t)( 32767 * -0.043524550291711629 ),
(int16_t)( 32767 * -0.266332552038745729 ),
(int16_t)( 32767 * 0.202280231120463921 ),
(int16_t)( 32767 * 0.202280231120463921 ),
(int16_t)( 32767 * -0.266332552038745729 ),
(int16_t)( 32767 * -0.043524550291711629 ),
(int16_t)( 32767 * 0.156325893091597889 ),
(int16_t)( 32767 * -0.023573767008029177 ),
(int16_t)( 32767 * -0.020215599070424518 ),
(int16_t)( 32767 * -0.010922165225960134 ),
(int16_t)( 32767 * -0.018116171681357755 ),
(int16_t)( 32767 * 0.032836149022814447 ),
(int16_t)( 32767 * 0.002342319779150199 ),
(int16_t)( 32767 * -0.013704463164367490 ),
(int16_t)( 32767 * 0.001438852006155712 ),
(int16_t)( 32767 * -0.001703394924168867 ),
(int16_t)( 32767 * 0.003067248151485474 ),
(int16_t)( 32767 * 0.001550482626183785 )
};