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AVR实现软USB转RS232的全部资料-AVR USB to achieve soft RS232 all the information

Serial communication

MT+Single+chip+dual+SIM+MT6225+MT6318+MT6188+MT6301+MT6139+MT6601+MT6302图纸-MT+ Single+ Chip+ Dual+ SIM+ MT6225+ MT6318+ MT6188+ MT6301+ MT6139+ MT6601+ MT6302 drawings

IRDA红外通信程序-IRDA infrared communication procedure

移动无线通信小区功率控制中的DPC算法，用于下行功率控制-Mobile wireless communications cell power control in the DPC algorithm for downlink power control

中国移动第三代移动通信网网络管理技术接口规范 -- 3G直放站部分 南向接口规范 -China Mobile third-generation mobile communication network management interface specification- 3G repeater part of the South to the interface specification

现有数字信号自动调制识别方法大多只适用于无记忆信号，如PSK、ASK、FSK信号等。将有记忆 信号(MSK信号)和无记忆信号一起考虑，提出了一种改进的数字信号自动识别方法。该方法采用信号的瞬时统 计量作为特征参数，采用多层神经网络作为分类器。计算机仿真表明：当噪声采用高斯白噪声，并且信噪比大于 l5 dB时，识别率高于96％ ；当信噪比不低于l0 dB时，识别率不低于90％。-Existing digital signal automatic modulation recognition methods are mostly applied only to memoryless signals, such as PSK, ASK, FSK signals. Will have a memory signal (MSK signal) and non-memory signal into consideration, an improved digital signal automatic identification method. This method is the use of the instantaneous signal statistics as a characteristic parameter, the use of multi-layer neural network as classifier. Computer simulation shows that: When the noise using Gaussian white noise, and signal to noise ratio greater than l5 dB, the recognition rate is higher than 96 when the signal to noise ratio not less than l0 dB, the recognition rate of not less than 90.

双音多频的DTMF信号编码程序，产生DTMF信号进行编码。-DTMF DTMF signal coding procedures have DTMF signal coding.

本程序采用stm32芯片，包含（spi/红外/串口/无线通信/tcp/ip）具有非常强大的数据处理功能，简单易懂，对现在开发产品的同行可以直接移用！

ISO 13239为关于HDLC协议的国际标准，详细定义了HDLC的内容，通过该协议可以完成标准的HDLC编程-ISO 13239 for HDLC agreement on international standards, a detailed definition of the content of HDLC, adoption of the agreement will be completed standard HDLC Programming