远程数据传输的研究, 远程数据传输的研究

The program constructs girth-twelve column-weight QC-LPDC codes. The rate can be changed by changing k(row-weight), size is changed by varying m(sub-matrix size).

利用星座图重排策略的HARQ方案，和chase combined 方案的比较仿真-The use of constellation rearrangement strategy HARQ program, and chase combined comparison of simulation programs

国家FSK标准协议(中国来电显示标准FSK5式)没有密码-national standard protocols (China CND standards FSK5-) No Password

Sigma调制功能，便可提高其频率精度，大幅降低相位噪音及带内杂散信号，并???持极高的切换速度。系统设计工程师可以利用 Delta Sigma PLL将比较频率提高到很高的水平，以大大降低相位噪音。但高比较频率会导致产生周期滑动(cycle slipping)现象。-Sigma modulation function, can increase its frequency accuracy, dramatically reducing the in-band phase noise and spurious signals, and??? Holders of high switching speed. System design engineers can take advantage of Delta Sigma PLL compares the frequency increased to a very high level in order to significantly reduce the phase noise. However, the high comparison frequency would result in sliding cycle (cycle slipping) phenomenon.

基于J2ME手机软件的研究及开发与应用-phones based on J2ME software research and development and application

北京邮电大学关于移动通信和3G方面培训的文档。-Beijing University of Posts and Telecommunications on 3G mobile communications and training documents.

编写PC下的串行通信程序,利用VB界面,方便快捷,可靠性强-Prepared under the PC serial communication procedures, the use of VB interface, convenient and reliable

《ARM无线通信开发实例》这本书的代码和数据文档-err

OV9650 settings on Qualcomm

基于STM32F103C8T6的LoRa模块通信,使用ZLG的SX1276方案，SX1276/77/78 收发器主要采用LoRaTM 远程调制解调器，用于超长距离扩频通信，抗干扰性强，能够最大限度降低电流消耗。借助升特的LoRaTM 专利调制技术，SX1276/77/78 采用低成本的晶体和物料即可获得超过-148dBm 的高灵敏度。此外，高灵敏度与+20dBm 功率放大器的集成使这些器件的链路预算达到了行业领先水平，成为远距离传输和对可靠性要求极高的应用的最佳选择。相较传统调制技术，LoRaTM调制技术在抗阻塞和选择性方面也具有明显优势，解决了传统设计方案无法同时兼顾距离、抗干扰和功耗的问题。