simu_gps

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应用MATLAB编程，LTE系统中上行链路SC-FDMA信号生成的程序(Application of MATLAB programming, LTE system uplink SC-FDMA signal generation process)

qpsk完整解调，包括载波同步，位同步采用迟早门，载波同步采用判决反馈(qpsk complete demodulation, including the carrier synchronization, bit synchronization using the door sooner or later, the use of decision feedback carrier synchronization)

This thesis presents simulation data on array operation in wideband communication systems. It is shown that array structures with closer inter-element spacing outperform structures with much larger inter-element spacing. It is also shown that circular structures outperform linear structures. This performance dierence between the classications of arrays is due largely to the circular array s ability to handle high levels of interference. Even though a diversity combining scheme (MRC) was used in the simulator, the arrays provided interference rejection capabilities due to the closely spaced antenna elements.

说明：  51单片机，通过人体红外热释电模块检测人数，并计数。(51 single chip computer, through the human body infrared pyroelectric module to detect the number of people, and count.)

说明：  利用商用WIFI和matlab对走、坐和蹲的三种数CSI 数据包进行预处理和特征提取(Commercial WIFI and matlab were used to preprocess and extract features of walking, sitting and squatting CSI packets)

802.11无线网络权威指南+第二版（中文版）(Ppls of 802.11 Wireless Networks The Definitive Guide, Second Edition (Chinese Edition))

说明：  当今世界电子对抗日益激烈，对于雷达低截获和抗干扰能力的研究越来越受到关注。OFDM (Orthorgonal Frequency Division Multiplexing，正交频分复用)雷达具有大时宽带宽积、波形设计方法灵活、频谱利用率较高以及低截获性能好的特性，因此逐渐成为雷达领域的重点研究方向。除此之外，OFDM信号时域和频域波形都比较复杂，当雷达信号采用OFDM技术时，敌方很难精确估计发射信号波形和瞬时频率，使得截获机不容易分析出检测到的雷达信号。当面对敌方的欺骗式干扰时，对于同样具有大时宽带宽积的线性调频信号，OFDM信号具有更好的抗欺骗式干扰的性能，因此OFDM技术在雷达上的运用愈来愈得到关注。(As electronic warfare becomes increasingly fierce, low intercept probability radar has become an important research filed in electronic countermeasures. OFDM (Orthorgonal Frequency Division Multiplexing) radars have gradually emerged due to their high spectrum efficiency, large time-bandwidth product, flexible waveform design methods, and low intercept probability.In addition, because of the complex time-frequency characteristics of the transmitted signal in OFDM radar, the enemy is difficult to estimate the transmitted signal waveform and instantaneous frequency.When faced with enemy deception interference, OFDM signals have better anti-spoofing performance for LFM signals that also have a large time-bandwidth bandwidth product. Therefore, the use of OFDM technology in radar is attracting more and more attention. .)

基于matlab的PN码的同步仿真，包含详细代码，可以直接运行(Matlab based PN code synchronization simulation, including detailed code, can run directly)

一个科技公司使用的GPRS接收程序。可是直接使用(A PROGRAM OF GPRS SERVER 。IT S VERY EASY TO USE.)