Zlg_Modbus

去上海培训数控的教材资料。西门子840d系统，关于硬件配置，轴调试，数据管理(NC to Shanghai training materials information. Siemens 840d systems, on the hardware configuration, shaft commissioning, data management)

14所编写的精密跟踪雷达图书，内容包括概论，雷达跟踪测量基础，单脉冲技术，跟踪雷达测量精度分析，跟踪雷达测量天线技术，接收机技术，距离跟踪技术，角跟踪伺服系统，多普勒测速技术等(The book of precision tracking radar written by 14 institute)

有助于学习LS信道估计的编码,以及mmse和LMMSE(ls chanel MMSE CHANEL LMMSE CHANEL)

说明：  FreeModbus_Slave-Master-RTT-STM32-master V1.6

对于新手调试入手很快,通过32单片进行通信控制,对于蓝牙运用极大帮助。(For beginners, debugging is very fast, and communication control is carried out through 32 single chip.)

Multiple input multiple output techniques combined with orthogonal frequency division multiplexing (MIMO-OFDM) provide a promising approach for wireless systems. However, a serious drawback of the OFDM system is the high peak-toaverage power ratio (PAPR), which may severely affect the power efficiency of RF power amplifiers. In this paper, we propose a simple method to reduce the PAPR of MIMO-OFDM signals based on the use of unused subcarriers. Instead of processing the signals at each transmitter separately, a peak cancelling signal is generated at one antenna and is then applied to all the others with only simple modifications. Simulation has shown that a minimum 2 dB reduction in PAPR can be achieved for all transmit signals using this approach. As the signal processing is nearly all done at a single transmitter, repetition of the operations at each transmitter is avoided, and therefore the overall cost of the system can be significantly reduced.

说明：  CCSDS推荐的LDPC编码方案，一系列参考标准，很好哦！(CCSDS recommended LDPC coding scheme, a series of reference standards, very good!)

无线传感器网络leach协议的matlab仿真程序(Wireless sensor networks matlab simulation program)

uwb仿真，上传到上来给大家一个参考，希望能有帮助(UWB simulation, upload onto a reference to the U.S., hoping to have help)

编写的基于LTE的SC_FDMA程序，其中包括调制、IFFT、子载波映射（分布式和集中式）、FFT及加CP。自己编写，可以运行。(LTE-based SC_FDMA written procedures, including modulation, IFFT, sub-carrier mapping (distributed and centralized), FFT, and plus CP. I have written, you can run.)