ASK4

application node 071 cc2430 to 2530 immigigration guide

说明：  单频、宽带信号的线阵、面阵波束形成，用的是fft能量或者幅度求和的做法(Beamforming of linear array and area array for single frequency and broadband signals)

code OFDM Matlab use in MIMO

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.)

说明：  OFDM系统模拟，有各种时域图和频谱图，相位图(OFDM system simulation)

对移动通信中的多径多普勒频移进行详细的仿真，对学习这个的朋友有极大的帮助(Of mobile communication in multi-path Doppler frequency shift to conduct a detailed simulation study of the friends of great help)

说明：  汽车行业CAN通讯SAEJ1939标准英文版(Auto Industry CAN Communication SAEJ1939 Standard English Edition)

产生一些常见的离散时间信号完成两个有限长序列的线性卷积和,用滑动平均滤波器对混有噪声的信号进行滤波()

带SPI接口的独立以太网接口控制器，支持全双工和半双工模式，高速SPI接口(Independent Ethernet interface controller with SPI interface, support for full-duplex and half-duplex mode, high-speed SPI interface)

this code simulate pure aloha .