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matlab实现数字信号处理中FIR的设计，各子函数完整。(matlab digital signal processing in the FIR design, the Functions integrity.)

1、研究BFSK在加性高斯白噪声信道下（无突发干扰）的误码率性能与信噪比之间的关系； 2、研究BFSK在加性高斯白噪声信道下（有突发干扰）的误码率性能与信噪比之间的关系；分析突发干扰的持续时间对误码率性能的影响。 3、研究BFSK+信道编码（取BCH码和汉明码）在加性高斯白噪声信道下（无突发干扰）的误码率性能与信噪比之间的关系；分析不同码率对误码率性能的影响。比较不同信道编码方式的编码增益性能。 4、研究BFSK+信道编码（取BCH码和汉明码）在加性高斯白噪声信道下（有突发干扰）的误码率性能与信噪比之间的关系；分析突发干扰的持续时间对误码率性能的影响。分析不同码率对误码率性能的影响。比较不同信道编码方式的编码增益性能。 (The relationship between research BFSK in additive white Gaussian noise channel (non-burst interference) bit error rate performance and signal to noise ratio research BFSK in additive white Gaussian noise channel (burst interference The relationship between), bit error rate performance and signal to noise ratio analysis of the duration of the burst interference on the BER performance. The relationship between the 3 the study BFSK+ channel coding (take BCH code and Hamming code) under the additive white Gaussian noise channel (non-burst interference), bit error rate performance and signal to noise ratio analysis of the different rate of bit error rate the impact of the performance. Comparison of different channel coding, coding gain performance. The relationship between the 4 the study BFSK+ channel coding (take BCH code and Hamming code) under the additive white Gaussian noise channel (burst interference), bit error rate performance and signal to noise ratio duration analysis of bu)

通信系统中的信号调制与解调技术，对信号采用8PAM的脉冲幅度调制进行仿真分析(Communication system signal modulation and demodulation techniques, using a pulse width modulated signal 8PAM of simulation analysis)

通过对匹配滤波器的了解，使用matlab编程实现匹配滤波器滤波(By understanding the matched filter, matched filter using matlab programming filtering)

产生FSK,BPSK,QPSK信号,循环均值，循环自相关，循环谱密度的计算与分析(Generate FSK, BPSK, QPSK signal, cycle mean, cycle autocorrelation, calculation and analysis of circulating spectral density)

FLAC使用手册对于操作过程给与详细说明，对于初学者来说非常实用涵。(FLAC user manual for the operation to give detailed instructions, is very useful for beginners Han.)

本代码为认知无线电频谱检测中循环周期特征检测算法的仿真代码(The code for spectrum sensing in cognitive radio feature detection algorithm cycle simulation code)

matlab description unbalanced voltage

运用hurst指数检验水文时间序列是否具有趋势性（单组数列&多组数列矩阵形式）(Use hurst index test whether hydrological time series trend (single-set number of columns & multiple columns in matrix form))

KNN Classification Code Matlab