宽带高速电台发射机系统的保护设计应用

Protection Design on Transmitting System of Wideband High-Speed Receiver Radio

宽带高速电台发射机的发射链路设计,需要满足高带宽、宽动态范围和优良的线性度。本文简述了宽带高速通信发射机的链路保护设计的关键技术,主要阐述了发射增益控制原理,详细说明了发射链路中的基带数字部分、信道部分和功放功率放大部分的电路设计,进行了仿真控制算法分析,提出了峰值环路、电流、温度等综合性的保护控制策略及具体的实现途径。最后结合实际应用,介绍该发射机系统保护设计的应用及其使用效果。

The design on transmitting chain for broadband high radio transmitter must satisfy the conditions of high bandwidth, wide dynamic range and good linearity. This article briefly discusses the key technology of transmitting chain protection for broadband high-speed communication transmitter, focuses on the principle of emission gain control, and expounds the circuit design of the transmitting chain, including digital baseband, channel, power amplifier, then analyzes the protection control policy, emulation control algorithms, proposes the integrated control stratogy and implementation of peak loop, current, temperature and so on, and finally in combination of actual application, describes the applications and effects of this transmitting system protection design.