three_phase_motor_speed_frequence

lbm方法模拟粗糙界面流动程序，采用D2Q9模型，反弹边界，粗糙界面采用规则矩形(lbm rough interface flow simulation program, using D2Q9 model, bounce boundary rectangle rough interface using rules)

针对DSP2812芯片，编制的工程文件，存储器修改、读写。完整工程，CCS调试通过，适合初学者(DSP2812 chip for the preparation of engineering documents, memory modify, read and write. Complete engineering, CCS debugging, suitable for beginners)

基于滑模算法的无传感器永磁同步电机的空间矢量控制程序(Application sw for sensorless PMSM Vector Control, version with alpha, beta SMO)

lbc_example：未编码的BPSK调制的性能（理论计算与仿真）、重复码硬判决的性能 lbc_example_SD： 未编码的BPSK调制的性能（理论计算）、重复码硬判决的性能、重复码软判决的性能 lbc_example_SD_EbNo：lbc_example_SD中的性能，并且进一步考虑了码率不同时，对于信道的SNR值进行归一化，以Eb/No = SNR/(2*R)为横坐标时的比较结果 lbc_example_Hamming_EbNo：汉明码，硬判决译码的性能(Lbc_example: Performance of uncoded BPSK modulation (theoretical calculation and simulation), performance of duplicate code hard decision Lbc_example_SD: Performance of uncoded BPSK modulation (theoretical calculation), performance of hard decision of duplicate code, performance of soft decision of duplicate code The performance of lbc_example_SD_EbNo: lbc_example_SD is considered, and the SNR value of channel is normalized when the bit rate is different. The comparison results are obtained when Eb/No = SNR/(2*R) is the abscissa coordinate. Lbc_example_Hamming_EbNo: Hamming Code, Performance of Hard Decision Decoding)

说明：  实现了一个直接扩频系统，使用BPSK作为调制解调方法。并比较白噪声AWGN及瑞利衰落(rayleigh fading)环境下，误码率的影响。(There are two files in the zip folder. bpsk_spread.m and jakesmodel.m Steps for simulation: 1] Run jakesmodel.m first 2] Then run bpsk_spread.m . 3] Note that during the first run bpsk_spread.m has no rayleigh fading.This is because the corresponding code has been commented 4] The resulting performance is stored in BER_awgn. 5] Now uncomment the Rayleigh Fading code in bpsk_spread.m file. 6] Same time comment BER_awgn (line 112) and uncomment BER_ray variable. 7] Run the simulation. To compare the perfromances of the receiver using DSSS plot the BER_awgn and BER_ray >>semilogy([1:8],BER_awgn(1:8), g* ) hold on semilogy([1:8],BER_ray(1:8), -.b* ) hold on grid on )

说明：  matlab代码识别象棋棋盘、识别象棋文字等，有需要的可以下载使用！(Matlab code recognition chessboard)

说明：  用ADSP21062实现快速IIR算法 压缩包内有源代码和说明(This directory holds all the files required for an ADSP-21060 programming example. The example "IIR" filter data using infinite impulse response (IIR) filters. The examples consist of a main calling program and called subroutines. This example system reads a buffer of input values stored in memory, passes the data through the filter, and writes the results to another buffer in memory. )

DSP学习资料... DSP学习资料(DSP learning materials learning materials ... DSP)

说明：  程序包中包括Chebyshev低通滤波器、巴特沃斯模拟低通滤波器、Cholesky分解、DFT算法、FFT算法，可以直接移植到嵌入式系统或DSP中实现。(Package includes Chebyshev low-pass filter, Butterworth low-pass filter simulation, Cholesky decomposition, DFT algorithm, FFT algorithm, can be directly transplanted to the embedded system or DSP to achieve.)

resource allocation in cognitive radio