PSO_matlab

OFDM 的全套程序， 包括调制， 解调， 误码， 眼图， 功率谱。。。(OFDM complete set of procedures, including modulation, demodulation, error, eye diagrams, power spectrum. . .)

包括RZ，NRZ，QAM，FSK，误码率曲线等的仿真(including RZ, NRZ, QAM, FSK, BER curves Simulation)

函数逼近的程序是一元函数的逼近，效果不错(function bijin de chengxu )

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).

this file contains the source code for AODV routing protocol but not its simulation.

data traffic model matlab code

雷达系统7------计算雷达系统中的CNR(Radar System 7------ calculate the CNR of the radar system)

this surce code is imsol matlab

CSMA/CD(1-persistent): 当有packet需要发送时： • 如检测到信道空闲，发送packet • 如检测到信道忙，一直检测信道状态，一旦信道空闲，立即发送(CSMA/CD (1-persistent): When there is packet needs to be sent when: • If the channel is detected idle, transmit packet • If the channel is detected busy channel state has been detected, once the channel is idle, transmit immediately)

说明：  使用matlab的simulink进行仿真GMSK，并画出仿真图。(GMSK is simulated with Simulink of matlab, and the simulation diagram is drawn.)