cdma

认知无线电 频谱分配。 颜色敏感分配方法 (Cognitive radio spectrum allocation. The sensitive allocation method based on the color of user fairness)

说明：  生成m序列和gold序列的matlab代码，并比较他们的自相关、互相关特性。(Generate matlab code of m-sequence, and control the generation of m-sequence with specified requirements through input tap)

说明：  stm32实现ook调制，调制通过，误码率较高(The realization of ook modulation by stm32)

TD-LTE下行传输采用了MIMO-OFDM的物理层构架，通过最多4个发射天线并行传输多个（最多4个）数据流，能够有效地提高峰值传输速率。LTE的物理层处理过程中，预编码是其核心功能模块，物理下行共享信道的几种主要传输模式都是通过预编码实现的。(The td-scdma LTE downlink transmission adopted MIMO - OFDM frame, the physical transmission antennas parallel transmission by up to four more (up to 4) data flow, can effectively improve the peak transmission rate.LTE) in the process of the physical layer of precoding is its core function module, several kinds of main physical downlink Shared channel transmission model is achieved by precoding.)

一种基于LFM和Barker码复合调制的雷达波形，理论上分析了该低截获雷达波形的组成。通过仿真得到复合调制信号的时域波形、频谱图和模糊函数图，与LFM信号和Barker码信号对比分析对复合调制雷达信号的距离和多普勒模糊函数、截获因子等进行了研究。(A radar waveform based on LFM and Barker code modulation is presented. The composition of the waveform is analyzed theoretically. The time domain waveform, spectrum and ambiguity function of the compound modulation signal are obtained by simulation. The range and Doppler ambiguity function and interception factor of the compound modulation radar signal are studied by comparing with LFM signal and Barker code signal.)

说明：  关于Polar码的,编码和译码，适合初学者(something about polar code)

fpga时钟，是入门的基础；希望对大家有帮助！(fpga clock, is the entry of the base want to help you!)

100 MHz Dual-Channel Oscilloscope PM3267/PM3267U

说明：  降低papr的pts算法的一种次优化算法。(reduce the papr pts a meeting algorithm optimization algorithm.)

关好电力规约IEC103的编程流程图.()