ThinkPHP_3.2.1_20140214

this is for calculate qam and it is very good to practice so good u can play

说明：  A Study of the Ultra-Wideband Wireless Propagation Channel and Optimum UWB Receiver Design

自己需要给出坐标，GPS测距。主要是实现了基于maltab测距GPS测距原理(you should give coordinates, GPS ranging)

Foreign materials as well as Solving Discrete-Time Markov Chains,ece document.

本构方程，用于高温粘塑性模型。的的疯狂了开发法公关部发的风风光光(umat ffgdkfjoiefkdfj)

说明：  3. 瑞利信道中的调制解调、信道估计： (1) 请推导出单径瑞利信道中的BPSK相干解调的理论误码率性能，并画出比特信噪比与误码率的关系曲线。 (2) 在单径瑞利信道中，请设计一种时分的导引辅助的信道估计方法，用Simulink进行仿真，测量BPSK的误码率性能，画出比特信噪比与误码率的关系曲线，并与理论误码率曲线进行对比。(3. Modulation demodulation and channel estimation in Rayleigh channel: (1) deduce the theoretical bit error rate performance of BPSK coherent demodulation in single-path Rayleigh channel, and draw the relationship curve between bit signal-to-noise ratio and bit error rate. (2) in single-path Rayleigh channel, please design a time-division guidance assisted channel estimation method, Simulink simulation, measure the bit error rate performance of BPSK, draw the relationship curve between bit SNR and bit error rate, and compare with the theoretical bit error rate curve.)

本程序通过分析OFDM信号的循环平稳特性，利用循环谱对OFDM信道进行估计。(This procedure by analyzing the OFDM signal is cyclostationary properties, the use of cyclic spectrum of the OFDM channel estimation.)

手机中RF的基础知识，想学习RF知识的朋友有一定的帮助作用。 (phone RF the basic knowledge, to study RF knowledge friends to a certain extent help.)

知道完美信道状态信息与不知道信道状态信息的信道容量的对比(Know the perfect channel state information and does not know the channel state information of the channel capacity of the contrast)

说明：  按信源编码、信道编码、传输、解码、计算分析的过程模拟实际MIMO技术的误比特率(Simulate the bit error rate of real MIMO technology according to the process of source coding, channel coding, transmission, decoding and calculation analysis)