多符号检测和Turbo乘积码技术在高码率PCM-FM遥测系统中的应用研究
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摘要
随着被测量飞行物的飞行速度越来越快,对遥测跟踪测量装备的要求也越来越高,所传输的数据量越来越大,遥测数据率由也由2Mbps提高到10Mbps甚至更高。当遥测测量装备要求具有10Mbps码率遥测数据的接收解调能力,传输码率提高到10Mbps后,在弹载遥测发射机发射功率不变的条件下会产生近7dB的增益差问题,应用多符号检测技术(MSD)和Turbo乘积码(TPC)译码技术可以有效解决这一问题并大幅提高PCM-FM遥测系统性能。
With the flying speed of the measured flying object becoming faster and faster, the requirement for Telemetry Tracking and measuring equipment is becoming higher and higher, and the amount of data transmitted is getting larger and larger, and the telemetry data rate has also increased from 2 Mbps to 10 Mbps or even higher. When the telemetry equipment requires 10 Mbps rate telemetry data receiving and demodulating capability and the transmission rate is increased to 10 Mbps, the gain difference of nearly 7 dB will occur when the transmitting power of the missile-borne telemetry transmitter remains unchanged. The application of multi-symbol detection(MSD) and Turbo product code(TPC) decoding technology can effectively solve this problem and greatly improve the performance of PCM-FM telemetry system.
With the flying speed of the measured flying object becoming faster and faster, the requirement for Telemetry Tracking and measuring equipment is becoming higher and higher, and the amount of data transmitted is getting larger and larger, and the telemetry data rate has also increased from 2 Mbps to 10 Mbps or even higher. When the telemetry equipment requires 10 Mbps rate telemetry data receiving and demodulating capability and the transmission rate is increased to 10 Mbps, the gain difference of nearly 7 dB will occur when the transmitting power of the missile-borne telemetry transmitter remains unchanged. The application of multi-symbol detection(MSD) and Turbo product code(TPC) decoding technology can effectively solve this problem and greatly improve the performance of PCM-FM telemetry system.
引文
[1]王晓波,吴岭,徐松艳.MSD与TPC技术在PCM/FM遥测系统中的应用研究[J].遥测遥控,2015,28(S):49-53.
[2]章兰英.基于DSTFT的PCM/FM信号软件化解调方法研究[J].装备指挥技术学院学报,2008,19(1):94-98.
[3]曹志刚,钱亚生.现代通信原理[M].北京:清华大学出版社,2002.
[2]章兰英.基于DSTFT的PCM/FM信号软件化解调方法研究[J].装备指挥技术学院学报,2008,19(1):94-98.
[3]曹志刚,钱亚生.现代通信原理[M].北京:清华大学出版社,2002.