欠采样环境下信号多频率估计
MULTIPLE FREQUENCIES ESTIMATION OF SIGNAL WITH SUB-SAMPLING
-
摘要: 在信号欠采样环境下,本文基于时延技术和MUSIC算法提出了一种新的信号多频率估计方法.只要合适地选取时延器的延迟时间,频率估计是无模糊的.计算机模拟实验表明此方法是可行的.
-
关键词:
- 欠采样; 频率; 时延; MUSIC算法
Abstract: Based on time delay technology and MUSIC algorithm, a novel estimating multiple frequencies approach of signal with sampling rate which is least Nyquist sampling rate is presented in this paper. With choosing delay time properly, the estimated frequencies are unambiguous. Computer simulation confirms its availability. -
Schmidt R O. Multiple emitter location and signal parameter estimation, IEEE Trans. on AP, 1986, AP-34(3): 276-280.[2]Zoltowski M D, Mathews C P. Real-time frequency and 2-D angle estimation with suh-Nyquist spatio-temporal sampling, ICASSP-93, Minnesota: 1993, IV: 117-120.[3]Zoltowski M D, Mathews C P. Real-time frequency and 2-D angle estimation with sub-Nyquist spatio-temporal sampling, IEEE Trans. on SP, 1994, SP-42(10): 2781-2794.[4]McCormick W S, Miller D F, Tsui J D Y. Instantaneous Frequency Measurement Receiver with[5]Solution Ambiguity in Multiple Ftequency Spectral Estimation, U.S. Patent, 5293114, 1994. 5.[6]McCormick W S, Miller D F, Tsui J D Y. Solution of a 2 ambiguity problem in multiple frequency spectral estimation, IEEE Trans. on AES, 1995, AES-31(1): 2-7.[7]Tufts D W, Ge H Y. Digital estimation of frequencies of sinusoids from wide-band under-sampled data, ICASSP-95, Melbourne: 1995, 3155-31158.[8]唐斌.空间信号多维参数估计方法研究:[博士论文].电子科技大学,1996. 5.
计量
- 文章访问数: 2014
- HTML全文浏览量: 106
- PDF下载量: 392
- 被引次数: 0