PSD

qpsk transmiter with qpska modulator QPSK is a method for transmitting digital information across an analog channel.Data bits are grouped into pairs, and each pair is represented by a particular waveform, called a symbol, to be sent across the channel after modulating the carrier.

这是一个正交交叉的量子行为粒子群算法的matlab程序（MOQPSO）,用户可以根据需求自己更换目标函数(this is an multi-collapse Orthogonal cross quantum-behaved particle swarm optimization program of matlab，the user can revise the Object function for your need.)

these is about code for dlx processor

低通滤波，属于频域滤波，先做傅里叶变换，再把中心移到原点，距离中心远的代表噪声信息，舍去(low-pass filter in Fourier domain)

id0的永磁同步电机仿真，可自设置参数，有说明。(Id0 permanent magnet synchronous motor simulation, can be set the parameters, there are instructions.)

2 m-files in matlab to help identify the if the function is a Diophantine equation(Two useful m-files for the Diophantine equation identification. )

关于滤波的程序，可以减少Gipps效应，提高信号的分辨率。(On filtering procedures, can reduce the Gipps effect, improve the resolution of the signal.)

The TCRT1000/ TCRT1010 have a compact construction where the emitting-light source and the detector are arranged in the same direction to sense the presence of an object by using the reflective IR-beam from the object. The operating wavelength is 950 nm. The detector consists of a phototransistor.

说明：  matlab经典教材，详细讲述了matlab6.0的功能与使用方法(matlab classic materials, matlab6.0 described in detail the function and use)

algorithms for contrast enhancement