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QAM调制的基本原理 QAM调制实际上是幅度调制和相位调制的组合。相位 + 幅度状态定义了一个数字或数 字的组合。QAM的优点是具有更大的符号率，从而可获得更高的系统效率。通常由符号率 确定占用带宽。因此每个符号的比特（基本信息单位）越多，效率就越高。-QAM modulation of the basic principles are in fact QAM modulation amplitude modulation and phase modulation of the portfolio. Phase+ margin status defines a combination of numbers or figures. The advantage of QAM symbols are greater rate, thus the system efficiency will be higher. Symbol rate is usually determined by the occupied bandwidth. Thus each bit symbols (basic units of information) the more the higher the efficiency.

c#多线程编程技术，这是一个监视器实例，能对运行线城实现监视-multithreaded programming technology, which is an example of monitors, capable of running the city line to achieve surveillance

EVRC code 的框图与流程,希望对大家理解EVRC encode 有帮助, Evrc Block Diagram, for audio engineer to understand EVRC encode,code -EVRC code of block diagram and flow, and they hope to have everyone understand the EVRC encode help, Evrc Block Diagram, for audio engineer to understand EVRC encode, code

源码中包括了QPSK的调制与解调，以及QPSK信号比特误码率的计算-Source code included in the QPSK modulation and demodulation, as well as the QPSK signal bit error rate calculation

mimo信道的matlab仿真,非常详细的matlab程序，有多个M文件-mimo channel matlab simulation, very detailed matlab program, a number of M files

3G中重要的应用，分析讲解了可视电话的基本原理和信令流程，及一些背景知识-3G important application, analysis of the video telephony on the basic principles and signaling processes, and some background knowledge

全系列DICOM开发文档，数字图象通信必备的资料，难得滴全啊 欢迎下载-The development of a full range of DICOM files, digital image communication necessary information, a rare drop ah welcome to download the whole

ASN.1编解码的JAVA实现，很有参考价值，JAVA，ASN.1-ASN.1 codec JAVA realize valuable, JAVA, ASN.1

仿真通信系统中QPSK的码头代码，大家可以作为参考-Simulation of Communication Systems pier QPSK code, we can serve as a reference

NRF2401无线模块，STM32程序实现了数据双向通信.它分为接收和发送两部分，发送时发送的源程序，接收是接收的源程序，分别设置了俩个文件夹。nrf24l01在stm32的模块上，通过spi接口连接，实行通信，最终实现两块单独的stm32模块实现短距离的无线通信，速度高，功耗小。