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说明：  中国移动位置业务Le Ls接口技术规范,详细规范,(China Mobile location Service Le Ls interface technical specification, detail specification,)

Cognitive Radio - Securuty

In this paper, we present and analyze efficient frame synchronization and frequency offset compensation scheme with ternary sequences for an orthogonal frequency division multiplexing (OFDM) system in Rayleigh fading channels. Frame synchronization is an essential procedure for normal operation of the OFDM system because of sensitivity to synchronization errors. And when there are frequency offsets in OFDM frame, the loss of orthogonality occurs and the interference problem among several subcarriers is introduced. These fact leads to the requirement for joint implementation of the frame synchronization and frequency offset compensation.

说明：  LFM线性调频波的matlab实现方法，并附上几种常用算法。(The Matlab implementation method of LFM chirp is accompanied by several commonly used algorithms.)

ofdm程序简单明了，包括ofdm整个过程。应该有借鉴意义。(OFDM straightforward procedure, including OFDM whole process. There should be reference.)

MIMO OFDM 预编码程序,可以用于MIMO系统的仿真(MIMO OFDM precoding system)

说明：  opnet网络仿真中文教程，给了我挺大帮助的(OPNET Network Simulation Chinese course, gave me a lot of help)

利用Matlab实现的二维TDOA定位算法仿真程序。。(2D TDOA algorithm implemented by Matlab simulation program. .)

modbus通信协议的CSHARP说明，，对使用该通信协议的开发人员来说很有用途。 (modbus communication protocol CSHARP instructions, a useful tool for developers using the communication protocol.)

Part of the license plate recognition locator feature, Complex of three-point Gauss-lengend the Formula pi, Simulation of doubly fed induction generator system.