CAJ | 학술논문

与MUSIC算法相比,二维ESPRIT算法不需要谱峰搜索、运算量小,但存在参数配对问题.基于此,提出一种易于实现的参数配对方法,基本原理是2个表出矩阵特征值的和差等于表出矩阵和差的特征值,不需求解表出矩阵的特征向量.给出基于CORDIC算法和脉动阵的参数配对并行化实现方案,整个系统只有移位相加运算.使用ISE软件和ModelSim软件得到的仿真结果验证了该方案的正确性.
여MUSIC산법상비,이유ESPRIT산법불수요보봉수색、운산량소,단존재삼수배대문제.기우차,제출일충역우실현적삼수배대방법,기본원리시2개표출구진특정치적화차등우표출구진화차적특정치,불수구해표출구진적특정향량.급출기우CORDIC산법화맥동진적삼수배대병행화실현방안,정개계통지유이위상가운산.사용ISE연건화ModelSim연건득도적방진결과험증료해방안적정학성.
Compared with MUSIC algorithm, two-dimensional Estimation of Signal Parameters via Rotational Invariance Techniques(ESPRIT) algorithm does not need search peaks of spatial spectrum, so it has less computation. However it needs pair parameters. So a new method for parameters pairing is put forward which is easy to be implemented. The pairing principle is that the sum and difference between eigenvalues of two externalization matrix equal to eigenvalues of sum and difference between two externalization matrixes. A parallel implementation scheme based on Coordinate Rotation Digital Computer(CORDIC) and systolic array is carried out, which only uses shift-adder computation unit. And the simulation by ISE and ModelSim is shown, which proves that the scheme is feasible.