高校问答百事可乐广告f4:求助，高手，翻译成英语。谢谢！！ddfs方面
来源：百度文库 编辑：高校问答 时间：2024/04/27 14:34:50
Design methodologies for high performance Direct Digital Fre-quen--cy Synthesizers (DDFS) are described. Traditional look-up tab-les (LUT) for sine and co-sine are merged with CORDIC-inter-po---la--tion into a hybrid architecture. This implements DDFS-sys-tems with high resolution without being specific to a particular tar-get technology. Amplitude constants were obtained from ma-the-matical trigonometric functions of the IEEE math_real pack-age. These constants were then written via simulation of a VHDL model into a fully synthesizable package. Systematic and detailed studies varying the synthesizers inherent parameters lead to a design optimum of the LUT/CORDIC-ra-tio, which mini-mizes power and silicon area for a given clock frequency.
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高性能的设计方法论直接数字式Fre-quen -- cy 合成器(DDFS) 被描述。传统查寻表(LUT) 为正弦和余弦与CORDIC 相互po la tion 被合并入杂种建筑学。这实施DDFS sys tems 以高分辨率没有是具体的对特殊目标技术。高度常数被获得了从IEEE math_real 包裹的数学三角函数。这些常数然后被写了通过VHDL 模型的模仿入一个充分地synthesizable 包裹。系统和详细的研究变化合成器固有参量导致LUT/CORDIC 镭的设计最宜tio, 使力量和硅区域减到最小为指定的钟频。