ask fsk

说明：  用VHDL语言在CPLD/FPGA上实现浮点运算的方法(in VHDL CPLD/FPGA achieve floating-point computation methods)

该程序为bellhop多径信道模型，其通信距离为5KM(The procedure for the bellhop multipath channel model, the communication distance of 5KM)

PC与单片机通信的握手协议的建立，以及工业上单片机控制继电器的实例(PC with Single-chip communication handshake agreement set up, as well as industry examples Singlechip Control Relay)

产生16QAM基带信号，成型滤波通过AWG信道，接收端得到误码率和星座图。(The 16QAM baseband signal is generated, the shaping filtering is passed through the AWG channel, and the receiving end obtains the BER and constellation diagram.)

说明：  平方根升余弦滤波器作为发送滤波器和匹配滤波器，使用python语言。(Make the square root rise cosine filter as a send filter and a match filter, using the python language.)

说明：  《全面详解LTE》一书配套代码，代码完整，但是可能存在殷matlab版本问题而无法运行的情况(Complete Code for "Comprehensive and Detailed Explanation of LTE")

人脸识别中的光照处理方法，用MATLAB编写的遗传算法路径规划，空间目标识别，采用PM算法。( Face Recognition light treatment method, Genetic algorithms using MATLAB path planning, Space target recognition algorithm using PM.)

针对数字卫星常用的 7 种通信信号调制方式(QPSK、8PSK、16QAM、32QAM、64QAM、16APSK、32APSK)，对零中心归一化瞬时幅度谱密度最大值、四次方谱、幅度、高阶累积量四种特征参数进行了分析，提出了一种联合特征参数的信号调制识别方法．(Aiming at seven communication signal modulation modes commonly used in digital satellite (QPSK, 8PSK, 16QAM, 32QAM, 64QAM, 16APSK and 32APSK), four characteristic parameters of zero-center normalized instantaneous amplitude spectral density, quadratic spectrum, amplitude and high-order cumulant are analyzed, and a signal modulation recognition method of joint characteristic parameters is proposed. Method.)

通过伪随机序列进行频率调制，并对相位连续性进行优化。调制信号的自相关函数可以通过谱修正进行旁瓣抑制(Frequency modulation is performed by pseudo-random sequence and phase continuity is optimized. The autocorrelation function of modulation signals can be sidelobe suppressed by spectral correction)

说明：  3. 瑞利信道中的调制解调、信道估计： (1) 请推导出单径瑞利信道中的BPSK相干解调的理论误码率性能，并画出比特信噪比与误码率的关系曲线。 (2) 在单径瑞利信道中，请设计一种时分的导引辅助的信道估计方法，用Simulink进行仿真，测量BPSK的误码率性能，画出比特信噪比与误码率的关系曲线，并与理论误码率曲线进行对比。(3. Modulation demodulation and channel estimation in Rayleigh channel: (1) deduce the theoretical bit error rate performance of BPSK coherent demodulation in single-path Rayleigh channel, and draw the relationship curve between bit signal-to-noise ratio and bit error rate. (2) in single-path Rayleigh channel, please design a time-division guidance assisted channel estimation method, Simulink simulation, measure the bit error rate performance of BPSK, draw the relationship curve between bit SNR and bit error rate, and compare with the theoretical bit error rate curve.)