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本文介绍TIROS卫星高分辨率图象数据传输系统中帧同步器的设计方案。该设计方案实现了并行相关数字处理的技术;通过窗电路对并行相关数字处理实施片选控制,提高了并行相关检出帧信号的抗干扰能力,对超帧长数据的帧结构进行了分析,并实现了对相关检出的帧同步信号实行了前、后方保护;解决了由于传输中数据类型变化而要求帧长度变化的的自动判别和转换的方法。
This article describes the TIROS satellite high-resolution image data transmission system frame synchronization design. The design scheme achieves the technology of parallel related digital processing. By means of the window circuit, the chip select control of the parallel correlation digital processing is implemented, the anti-interference ability of the signal of the parallel correlation detection is improved, the frame structure of the super frame length data is analyzed, And implements the front and rear protection of the detected frame synchronization signal; and solves the method of automatic judgment and conversion requiring the change of the frame length due to the change of the data type in the transmission.