图象压缩单元是一个嵌入式系统。
预放器是电视系统中决定图象质量最关键单元电路之一，而在预放器所有特点中，要求低噪声居首位。
In the television system, the head amplifier, whose low noise being put the first place in all the features, is one of the most important element circuits, which determines the image quality.
本文从图象压缩单元的需求分析入手，采用通用的DSP芯片，构成了图象压缩单元地面系统的硬件原型。
This thesis starts from demand analysis of image compression unit and gives hardware prototype of ground system of image compression unit with general purpose DSP chip.
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