ABSTRACT
This paper introduced according to the DSP short-wave correspondence and an important technique of the short-wave correspondences--synchronous technique.Said all not concern with the numerical short-wave that solution adjust correspondence system synchronous that the machine part adopt synchronous and cluster synchronous technique.Prospected finally according to the development foreground of the DSP short-wave correspondence.
Very low rate of the power of signal and noise under condition of short-wave correspondence is a kind of to meet an emergency the correspondence, this paper compared to introduce the very low rate of the power of signal and noise in details than under condition of words take the short-wave of the low speed rate design principle of the synchronous machine and the key technique that it adopt:the synchronous technique, short-wave corresponds by letter the technique, technique of DSP and divides to gather to receive the technique and numerals solution to adjust the technique, and give design that short-wave with the DSP synchronous the hardware structure and softwares of the machine realization.A great deal of experiment data express, the synchronous machine of this paper design under the condition of very low rate of the power of signal and noise can work goodly.
Keywords:short-wave communication,DSP, synchronous，the cent gathers to receive
