查表法和CORDIC在DVB_T中的应用
Look-up Table and CORDIC application in DVB-T implementation
本文着重对查表法和CORDIC两种算法的硬件结构的研究，查表的目的是产生正弦和余弦波，更确切的说是产生一个可变频率的正余弦样本；CORDIC算法被广泛应用于数字信号处理算法的硬件实现中。由于它将许多复杂的算术运算化成简单的加法和移位操作,节约硬件的面积资源，因此它在许多DSP算法的硬件实现中都有着极为重要的意义。最后，分别介绍这两种算法在DVB_T中的应用 。
he important purpose of this paper is to research the struction of look-up table and CORDIC. Look-up is used in generating sine wave and cosine wave; CORDIC is greatly applied in hardware implement of the DSP arithmetic. Among these hardware-efficient algorithms is a class of iterative for trigonometric and other transcendental functions that use only shifts and add to perform .Which save the hardware resource. So it is very useful for the DSP arithmetic.
龚莹莹、张桂兰
通信无线通信电视
查表法CORDICVB_T相角模式旋转模式
look-up tableCORDICDVB_Tvectoring moderotation mode
龚莹莹,张桂兰.查表法和CORDIC在DVB_T中的应用[EB/OL].(2007-10-29)[2025-08-17].http://www.paper.edu.cn/releasepaper/content/200710-515.点此复制
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