Voice-activity-detection

编制以M序列为输入时，脉冲响应的相关分析算法并检验。(The preparation of the M sequence as input, the impulse response of the correlation analysis algorithm and test.)

本人编写的QC-LDPC码的完整实现，采用阵列校验矩阵，极其简单，适合入门(A easy-to-learn source code of QC-LDPC encoder)

生成室内冲击响应的方法，使用的是image方法，matlab(Room impulse response method of generating)

TP simulation of inverter

本程序主要用于DDS算法的验证,可以生成正弦波，占空比可调的方波，三角波；其中频率控制字可调，生成波形的频率也可调。(This procedure is mainly used for verification DDS algorithm, can generate sine wave with adjustable duty cycle square wave, triangle wave including adjustable frequency control word to generate adjustable frequency waveform.)

matlab EMD 降噪方法 m文件 可以分析振动信号(Analysis of vibration signal can be matlab EMD noise reduction method for M documents)

对肌电信号进行简单的时频分析，包括RMS，肌电积分值，动态中值频率，近似熵，边际谱熵等(HHT Marginal Spectrum Entropy )

c语言和matlab实现sift算法，很实用的啊！(c and matlab program complete sift arithmetic)

脉冲压缩雷达的优点是能获得大的作用距离和具有很高的距离分辨力。(The advantage of pulse compression radar is that it can obtain large range of action and have high distance resolution.)

Quadrature amplitude modulation (QAM) is a modulation scheme in which two sinusoidal carriers, one exactly 90 degrees out of phase with respect to the other, are used to transmit data over a given physical channel. One signal is called the I signal, and the other is called the Q signal. Because the orthogonal carriers occupy the same frequency band and differ by a 90 degree phase shift, each can be modulated independently, transmitted over the same frequency band, and separated by demodulation at the receiver. For a given available bandwidth, QAM enables data transmission at twice the rate of standard pulse amplitude modulation (PAM) without any degradation in the bit error ratio (BER).