盘锦：打造美丽幸福家园 让农民生活更有奔头

#include "stm32f4xx.h" #include "FFT.h" #include "delay.h" #include "math.h" /* 输入和输出缓冲 */ #define TEST_LENGTH_SAMPLES 2048 #define numStages 25 /* 2阶IIR滤波的个数 */ #define MWSPT_NSEC 17 const int NL[MWSPT_NSEC] = { 1,3,1,3,1,3,1,3,1,3,1,3,1,3,1,3,1 }; float32_t IIRStateF32[4*numStages]; /* 状态缓存，大小numTaps + blockSize - 1*/ #define NUM_TAPS 1025 /* 滤波器系数个数 */ #define BLOCK_SIZE 32 /* 调用一次arm_fir_f32处理的采样点个数 */ static float32_t firStateF32[BLOCK_SIZE + NUM_TAPS - 1]; /* 状态缓存，大小numTaps + blockSize - 1*/ uint32_t blockSize = BLOCK_SIZE; uint32_t numBlocks = TEST_LENGTH_SAMPLES/BLOCK_SIZE/2; /* 需要调用arm_fir_f32的次数 */ /* 巴特沃斯高通滤波器系数 140Hz */ const float32_t IIRCoeffs32HP[5*numStages] = { 1.0f , -2.0f , 1.0f , 1.9992676272176104f , -0.99936865921262641f, 1.0f , -2.0f , 1.0f , 1.9980086919697135f , -0.99810966034506288f, 1.0f , -2.0f , 1.0f , 1.9967587847522019f , -0.99685968996411201f, 1.0f , -2.0f , 1.0f , 1.9955227982765169f , -0.99562364102846512f, 1.0f , -2.0f , 1.0f , 1.9943055526563369f , -0.99440633389538335f, 1.0f , -2.0f , 1.0f , 1.9931117773444245f , -0.99321249825662927f, 1.0f , -2.0f , 1.0f , 1.9919460936835267f , -0.99204675568848766f, 1.0f , -2.0f , 1.0f , 1.9908129981195908f , -0.99091360286413099f, 1.0f , -2.0f , 1.0f , 1.9897168461195178f , -0.98981739547056202f, 1.0f , -2.0f , 1.0f , 1.9886618368299256f , -0.98876233286659998f, 1.0f , -2.0f , 1.0f , 1.987651998507896f , -0.98775244351289315f, 1.0f , -2.0f , 1.0f , 1.9866911747495994f , -0.98679157119984595f, 1.0f , -2.0f , 1.0f , 1.985783011537948f , -0.98588336209461847f, 1.0f , -2.0f , 1.0f , 1.984930945126153f , -0.9850312526240711f, 1.0f , -2.0f , 1.0f , 1.9841381907702114f , -0.98423845820668243f, 1.0f , -2.0f , 1.0f , 1.9834077323199608f , -0.98350796284307762f, 1.0f , -2.0f , 1.0f , 1.9827423126754249f , -0.9828425095718909f, 1.0f , -2.0f , 1.0f , 1.9821444251126981f , -0.9822445917952134f, 1.0f , -2.0f , 1.0f , 1.9816163054816152f , -0.98171644547586767f, 1.0f , -2.0f , 1.0f , 1.9811599252758614f , -0.98126004220716723f, 1.0f , -2.0f , 1.0f , 1.9807769855749855f , -0.98087708315462407f, 1.0f , -2.0f , 1.0f , 1.9804689118569936f , -0.98056899386828011f, 1.0f , -2.0f , 1.0f , 1.9802368496797096f , -0.98033691996384942f, 1.0f , -2.0f , 1.0f , 1.9800816612289243f , -0.98018172367069289f, 1.0f , -2.0f , 1.0f , 1.9800039227314472f , -0.98010398124473963f }; /* 高通滤波器其系数 通过fadtool获取*/ const float32_t firCoeffs32HP[NUM_TAPS] = { -2.448508894e-05,-2.449203566e-05,-2.450427746e-05,-2.452181798e-05,-2.454465721e-05, -2.457280061e-05,-2.460624637e-05,-2.464499812e-05,-2.468905586e-05,-2.473842324e-05, -2.479310024e-05,-2.485308687e-05,-2.491838313e-05,-2.498899084e-05,-2.506491001e-05, -2.514614062e-05,-2.523268267e-05,-2.532453436e-05,-2.542169568e-05,-2.552416481e-05, -2.563194357e-05,-2.574502651e-05,-2.586341543e-05,-2.598710671e-05,-2.611610034e-05, -2.625039087e-05,-2.638998012e-05,-2.653486263e-05,-2.668503475e-05,-2.68404965e-05, -2.700124242e-05,-2.716727067e-05,-2.733857582e-05,-2.751515603e-05,-2.769700404e-05, -2.788411803e-05,-2.807649435e-05,-2.827412573e-05,-2.847701035e-05,-2.868513911e-05, -2.889851021e-05,-2.911711636e-05,-2.934095028e-05,-2.957001016e-05,-2.98042869e-05, -3.004377322e-05,-3.02884655e-05,-3.053835462e-05,-3.079343514e-05,-3.105369979e-05, -3.131913763e-05,-3.158974505e-05,-3.186551476e-05,-3.214643584e-05,-3.243250103e-05, -3.272369941e-05,-3.302002733e-05,-3.332147389e-05,-3.362802818e-05,-3.393967927e-05, -3.425642353e-05,-3.457825005e-05,-3.490514428e-05,-3.523709893e-05,-3.557410309e-05, -3.59161495e-05,-3.626322359e-05,-3.661531446e-05,-3.697241118e-05,-3.733450285e-05, -3.770158219e-05, -3.8073631e-05,-3.845063839e-05,-3.883259706e-05,-3.921948883e-05, -3.961130278e-05,-4.000803165e-05,-4.040965359e-05,-4.081616134e-05,-4.122753671e-05, -4.164377242e-05,-4.206485028e-05,-4.249075937e-05,-4.292148151e-05,-4.335700578e-05, -4.379731763e-05,-4.424239887e-05,-4.469223859e-05,-4.514682223e-05,-4.560612797e-05, -4.607014853e-05,-4.653886208e-05,-4.701225407e-05,-4.749030995e-05,-4.797301517e-05, -4.84603479e-05,-4.895229722e-05,-4.944884131e-05,-4.994996561e-05,-5.045565194e-05, -5.096588575e-05,-5.148064884e-05,-5.199991938e-05,-5.252368283e-05,-5.305192099e-05, -5.358461203e-05,-5.412174141e-05,-5.466329094e-05,-5.520923878e-05,-5.575956675e-05, -5.631425665e-05,-5.68732903e-05,-5.743664587e-05,-5.800430154e-05,-5.857624274e-05, -5.915244401e-05,-5.97328908e-05,-6.031755402e-05,-6.090642273e-05,-6.149947149e-05, -6.209668209e-05,-6.269802543e-05,-6.330348697e-05,-6.391304487e-05,-6.452667731e-05, -6.514436245e-05,-6.57660712e-05,-6.639179628e-05,-6.702150131e-05,-6.765517173e-05, -6.829277845e-05,-6.893430691e-05,-6.957972801e-05,-7.022902719e-05,-7.088216807e-05, -7.153912884e-05,-7.219989493e-05,-7.286444452e-05,-7.353274123e-05,-7.420476322e-05, -7.488049596e-05,-7.555991033e-05,-7.624297723e-05,-7.692967483e-05,-7.761998131e-05, -7.831386756e-05,-7.901130448e-05,-7.971227751e-05,-8.041675756e-05,-8.112471551e-05, -8.183612954e-05,-8.255097055e-05,-8.32692167e-05,-8.399083163e-05,-8.471580077e-05, -8.544409502e-05,-8.617568528e-05,-8.691054245e-05,-8.764864469e-05,-8.838995564e-05, -8.913446072e-05,-8.988213085e-05,-9.063293692e-05,-9.138684254e-05,-9.21438259e-05, -9.290386515e-05,-9.366693121e-05,-9.443298768e-05,-9.520200547e-05,-9.597397002e-05, -9.674884495e-05,-9.752660117e-05,-9.830720228e-05,-9.909063374e-05,-9.987685917e-05, -0.0001006658567,-0.0001014575828,-0.0001022520228,-0.0001030491403,-0.0001038489063, -0.0001046512843,-0.0001054562599,-0.0001062637966,-0.0001070738581,-0.0001078864225, -0.0001087014534,-0.0001095189218,-0.0001103388058,-0.0001111610618,-0.0001119856679, -0.000112812595,-0.0001136417995,-0.0001144732669,-0.0001153069607,-0.0001161428445, -0.0001169808893,-0.0001178210659,-0.0001186633453,-0.0001195076838,-0.0001203540669, -0.0001212024581,-0.0001220528138,-0.0001229051122,-0.0001237593242,-0.0001246154134, -0.0001254733506,-0.0001263331069,-0.0001271946239,-0.0001280579017,-0.0001289228967, -0.0001297895797,-0.000130657907,-0.0001315278641,-0.0001323993929,-0.0001332724933, -0.000134147107,-0.0001350232051,-0.0001359007583,-0.0001367797377,-0.0001376600994, -0.0001385418145,-0.0001394248684,-0.0001403091883,-0.0001411947887,-0.000142081597, -0.0001429695985,-0.0001438587497,-0.0001447490358,-0.0001456403988,-0.0001465328241, -0.0001474262681,-0.0001483207016,-0.0001492160955,-0.0001501123916,-0.0001510095899, -0.0001519076322,-0.0001528064895,-0.0001537061471,-0.0001546065469,-0.0001555076597, -0.0001564094418,-0.0001573118934,-0.0001582149416,-0.0001591185865,-0.0001600227697, -0.0001609274623,-0.0001618326205,-0.0001627382298,-0.0001636442612,-0.0001645506418, -0.0001654573716,-0.0001663644216,-0.000167271719,-0.0001681792637,-0.0001690870122, -0.0001699949207,-0.0001709029602,-0.0001718111016,-0.0001727193012,-0.0001736275299, -0.0001745357586,-0.0001754439436,-0.0001763520559,-0.0001772600517,-0.0001781679166, -0.0001790755923,-0.0001799830497,-0.0001808902598,-0.0001817971934,-0.0001827038213, -0.0001836100855,-0.0001845159568,-0.0001854214206,-0.0001863264188,-0.0001