yangxin2

说明：  MATLAB的87个应用实例，对学习matlab有帮助！(MATLAB 87 application examples to learn MATLAB, help! )

说明：  正余弦函数发生器设计是需要的地址对应值，希望对你有帮助(Cosine function generator is designed to address needs of the corresponding value, want to help you)

Filterbanks for digital hearing aids must use significantly different criteria than those designed for coding applications. For digital hearing aids, the filterbank channel gains must be adjustable over a large dynamic range to compensate for the hearing loss. This adjustability violates the alias cancellation properties of critically sampled filterbanks designed for coding. This paper describes a filterbank designed exclusively for hearing aid applications. Consideration will be given to the extremely limited memory, low delay and low power requirements that must be met in a typical hearing aid application.

针对提出的故障信号，利用awgn加噪，对其进行小波软硬阈值降噪，提出一种改进阈值，利用五种自适应阈值函数sqtwolog、rigrsure、heursure、minimaxi和ddencmp中阈值选取原则，对软阈值、硬阈值和改进阈值进行降噪效果对比。(In view of the proposed fault signal, the wavelet soft and hard threshold de-noising is carried out by AWGN adding noise, and an improved threshold is proposed. The threshold selection principle of five adaptive threshold functions, sqtwolog, rigrsure, heursure, minimaxi and ddencmp, is used to compare the soft threshold, hard threshold and threshold value.)

关于qpsk调制的代码，详细描述和仿真了qpsk的调制过程和AWGN信道(About qpsk modulation code, a detailed description and simulation of the qpsk modulation process and the AWGN channel)

降压dc变换器输出功能仿真，根据可控晶闸管调节电压的压降，实现降压电路，采用pwm波控制。(buck DC Converter)

用新方法计算融资融券折算率,内容丰富，详细介绍了计算过程(The new method to calculate rate of conversion in Margin Trading)

估计Hurst指数，用于混沌分形分析，减低小波估计的计算量(Estimated Hurst exponent, chaos fractal analysis, and reducing the amount of calculation for wavelet estimation)

利用差分fft 同步的算法 matlab编程实现(diff fft sync)

粒子群反演算法，可用于波动反演，地震领域，岩石破裂领域。(Particle swarm inversion algorithm can be used in wave inversion, seismic field, rock fracture field.)