修复除法精度不足acos的边界溢出问题
parent
fb8f0409e1
commit
aca14ee0cc
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@ -75,9 +75,13 @@ __device__ CUDAVectorEllipsoidal GPU_SatelliteAntDirectNormal(
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// 计算theta 与 phi
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double Norm = sqrtf(Xant * Xant + Yant * Yant + Zant * Zant); // 计算 pho
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double ThetaAnt = acosf(Zant / Norm); // theta 与 Z轴的夹角
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double ThetaAnt = abs(Zant - Norm)<PRECISIONTOLERANCE?0: acosf(Zant / Norm); // theta Óë ZÖáľÄźĐ˝Ç
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double PhiAnt = atanf(Yant / Xant); // -pi/2 ~pi/2
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if (isnan(ThetaAnt)) {
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printf("theta is nan,[Xant,Yant,Zant,Norm,Zn,Z1]=[%f,%f,%f,%f,%f,%f];\n",
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Xant, Yant, Zant,Norm, Zant / Norm, Zant / Norm-1);
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}
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if (abs(Yant) < PRECISIONTOLERANCE) { // X轴上
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PhiAnt = 0;
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@ -106,7 +110,6 @@ __device__ CUDAVectorEllipsoidal GPU_SatelliteAntDirectNormal(
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printf("V=[%f,%f,%f];norm=%f;thetaAnt=%f;phiAnt=%f;\n", Xant, Yant, Zant, Norm, ThetaAnt, PhiAnt);
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}
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result.theta = ThetaAnt;
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result.phi = PhiAnt;
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result.Rho = Norm;
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@ -278,9 +281,24 @@ __global__ void CUDA_Kernel_Computer_R_amp(
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else {}
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ampGain = ampGain / (powf(4 * LAMP_CUDA_PI, 2) * powf(RstR, 4)); // 反射强度
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d_temp_amps[idx] = float(ampGain * Pt * sigma0);
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d_temp_R[idx] = float(RstR - refPhaseRange);
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float temp_amp = float(ampGain * Pt * sigma0);
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float temp_R = float(RstR - refPhaseRange);
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if (isnan(temp_amp) || isnan(temp_R)|| isinf(temp_amp) || isinf(temp_R)) {
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printf("amp is nan or R is nan,amp=%f;R=%f; \n", temp_amp, temp_R);
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d_temp_R[idx] = 0;
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d_temp_amps[idx] = 0;
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return;
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}
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else {}
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d_temp_amps[idx] = temp_amp;
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d_temp_R[idx] = temp_R;
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return;
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}
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else {
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@ -355,6 +373,11 @@ __global__ void CUDA_Kernel_Computer_echo(
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//if (dataid > 5000) {
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// printf("echo_ID=%d; dataid=%d;ehodata=(%f,%f);R=%f;amp=%f;\n", echo_ID, dataid, temp_real, temp_imag, s_R[0], s_amp[0]);
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//}
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if (isnan(temp_phi) || isnan(temp_amp) || isnan(temp_real) || isnan(temp_imag)
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|| isinf(temp_phi) || isinf(temp_amp) || isinf(temp_real) || isinf(temp_imag)
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) {
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printf("[amp,phi,real,imag]=[%f,%f,%f,%f];\n",temp_amp,temp_phi,temp_real,temp_imag);
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}
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}
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//printf("echo_ID=%d; ehodata=(%f,%f)\n", echo_ID, temp_real, temp_imag);
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@ -22,7 +22,7 @@
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<x>0</x>
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<y>0</y>
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<width>1920</width>
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<height>22</height>
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<height>23</height>
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</rect>
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</property>
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</widget>
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@ -43,6 +43,12 @@
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<layout class="QVBoxLayout" name="verticalLayout">
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<item>
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<widget class="QTreeWidget" name="treeWidgetToolBox">
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<property name="font">
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<font>
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<family>黑体</family>
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<pointsize>16</pointsize>
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</font>
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</property>
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<column>
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<property name="text">
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<string>工具箱</string>
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@ -103,7 +103,7 @@
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</size>
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</property>
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<property name="text">
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<string>D:/Programme/vs2022/RasterMergeTest/simulationData/demdataset/landcover_center_int32.dat</string>
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<string>D:/Programme/vs2022/RasterMergeTest/simulationData/demdataset/landcover_aligned2.dat</string>
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</property>
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</widget>
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</item>
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@ -233,7 +233,7 @@
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</size>
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</property>
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<property name="text">
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<string>D:/Programme/vs2022/RasterMergeTest/simulationData/demdataset/demxyz_center.bin</string>
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<string>D:/Programme/vs2022/RasterMergeTest/simulationData/demdataset/demxyz.bin</string>
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</property>
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</widget>
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</item>
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@ -350,7 +350,7 @@
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</size>
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</property>
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<property name="text">
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<string>D:/Programme/vs2022/RasterMergeTest/simulationData/demdataset/demsloper_center.bin</string>
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<string>D:/Programme/vs2022/RasterMergeTest/simulationData/demdataset/demsloper.bin</string>
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</property>
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</widget>
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</item>
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@ -828,10 +828,8 @@ ErrorCode RFPCProcessCls::RFPCMainProcess_GPU() {
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HostToDevice(h_demsloper_x, d_demsloper_x , sizeof(double) * blockline * demCol);
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HostToDevice(h_demsloper_y, d_demsloper_y , sizeof(double) * blockline * demCol);
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HostToDevice(h_demsloper_z, d_demsloper_z , sizeof(double) * blockline * demCol);
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HostToDevice(h_demcls, d_demcls ,sizeof(long)* blockline* demCol);
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// 分块处理
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qDebug() << "Start PRF: " << sprfid << "\t-\t" << sprfid + PRF_len << "\t:GPU Computer target data (" << startline << "-" << startline + blockline << ")";
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@ -876,8 +874,6 @@ ErrorCode RFPCProcessCls::RFPCMainProcess_GPU() {
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FreeCUDAHost(h_temp_R);
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FreeCUDAHost(h_temp_amp);
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#endif
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DeviceToHost(h_echo_block_real, d_echo_block_real, sizeof(float) * PRF_len * freqnum);
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DeviceToHost(h_echo_block_imag, d_echo_block_imag, sizeof(float) * PRF_len * freqnum);
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