An automatic gain control circuit, its method, and demodulation apparatus capable of high-speed accurate level capture and preventing generation of an error and system destruction.
一种自动增益控制电路、其方法以及解调装置，能够高速精确地获取电平，防止产生误差和系统破坏。
2
Error correction encoding method and apparatus, data transmission method, receiving method and receiver.
纠错编码方法和装置，数据传输方法，接收方法和接收机。
3
Principle, method and apparatus for young's modulus measurement of metallic material by indentation method are reviewed, and the methods error is analysed.