与各种不同的通信协议和帧结构。L2数据网络

Wideband Spectrum Sensing-Spatial-Spectral Joint Detection for Wideband Spectrum Sensing in cognitive radio networks

目前的智能机在硬件上多采用双cpu的架构，一个是基带处理器，主要处理数字信号、语音信号的编码解码以及GSM通信协议，另一个是应用处理器，运行操作系统和各种应用程序。基带处理器、射频和其它外围芯片作为一个模块，成为GSM/GPRS modem，提供AT命令接口。网络的应用已经是一个需求的热点，而目前的GSM模块大多都能支持GPRS功能。应用处理器通过AT命令集与带GPRS功能的无线通讯模块通信，为实现网络的应用提供了一个最底层的支持。 -Intelligent machines in the current hardware on many dual-cpu architecture of a baseband processor are mainly deal with digital signals, voice signals, and GSM codecs communication protocol, and the other is the application processor, operating system and applications running procedures. Baseband processor, radio frequency and other peripheral chips, as a module, as a GSM/GPRS modem, provided by AT command interface. Application of network needs is a hot spot, and most of the current GSM module can support GPRS function. Application processor through the AT command set and functionality with GPRS wireless communication module, in order to achieve the application of the network provides a bottom support.

串口通讯-Serial Communication

STM32与FPGA的通信，SPI方式，具体介绍文件里都有，使用前请先看读我，本程序经过验证无误。

这是用于ZIGBEE  芯片CC2530的串口通信程序，是将两个模块连接起来，进行串口传输数据，发送的波特率为112500，测试的时候应该将波特率设置正确，否则会导致乱码。。。。。

是vs2005下CRC16算法的例程,测试通过. 测试数据:0103000000f0 结果:458E-CRC16 algorithm is under vs2005 routine, test. Test data: 0103000000f0 results: 458E

MATLAB程序的仿真比较。随后，针对QPsK，详细讨论了其基本原理和具体的实现算法，并进行了仿真验证，然后选用HSP502巧数字上变频芯片和HSP50214B数字下变频芯片，设计了数字调制、解调器的实现方案。最后，作为对整个数字视频图像传输系统的宏观认识，利用M户JLAB中的实时建模仿真Simullnk库对典型的视频图像传输系统一数字视频广播系统(D vB)，进行了建模、仿真和初步的分析，结果表明:在高斯白噪声的传输环境下，系统采取的一系列抗干扰措施，包括内、外码级联的信道纠错编码和先进的调制技术(o FDM)等，保证了信源信息传输的有效进行。-MATLAB simulation comparison. Then, against QPsK to discuss in detail the basic principles and specific algorithm, a simulation test, and then choose the cleverest HSP502 figures HSP50214B frequency chips and digital down conversion chips, the design of digital modulation, demodulation for the realization of the program.MJLABSimullnk(D vB):Andean white noise transmission environment, the system adopted a series of anti-jamming measures, including internal and external codes Cascade Channel advanced error correction coding and modulation techniques (o FDM), ensuring a source of information for the effective transmission.

16qam constellation and histogram

iic 接口程序，主从控制，可切换的，VHDL 代码，该代码接口定义清晰，使用方便，只需要例化顶层模块，就完成该代码的硬件集成，希望对做硬件的朋友有帮助

关于ZIGBEE技术开发中cc2430串口调试问答的pdf文件，对于在进行ZIGBEE研究或开发中遇到该类问题的朋友很有用-ZIGBEE technology development on the cc2430 debug serial port of the Q & A pdf document ZIGBEE in research or development issues encountered in such useful friends