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随着城市经济的快速发展和城市人口的不断增加，人类活动对城市环境质量的影响日显突出。(With the city' s rapid economic development and urban population increases, human activities on urban environmental quality more evident.)

It gives optimal histogram. It has m files. Mainly it is a program of Matlab

说明：  适合Symbian S60 第三版 通过数字键改变屏幕颜色，*号控制闪烁，#停止闪烁(For Symbian S60 third edition of the digital key to change screen colors, control the blinking asterisk,# stop flashing)

QPSK高斯噪声信道下的星座点和比特误码率仿真曲线(QPSK constellations point under gaussian noise channel and the bit error rate curve simulation)

keyboard user input control

Autoassociative Memory performance with and without pseudoinverse weight matrix

在本次仿真中，信道加入了高斯白噪声，收端采用了相干解调的解调方法。附详细的WORD文档说明(In this simulation, the channel joined the Gaussian white noise, closed-ended demodulation using coherent demodulation method. WORD document attached to a detailed description)

自己做的感应电机无速度传感器直接转矩控制仿真模型，特拿来分享，还望大家多多指教。(sensorless direct torque control for induction motor)

Engineering often involves applying a consistent, structured approach to the solving of problems

Garch模型的最大似然估计计方法，基于MATLAB程序。 (The Garch model the maximum likelihood estimator design methodology, based on the MATLAB program.)