Ultra-Wideband Instantaneous Frequency Estimation

被引：18

作者：

Lam, Daniel ^{[1
]}

Buckley, Brandon W.

Lonappan, Cejo K. ^{[2
]}

Madni, Asad M. ^{[2
,3
,4
,5
]}

Jalali, Bahram ^{[6
,7
,8
,9
,10
]}

机构：

[1] Northrop Grumman Aerosp Syst, Redondo Beach, CA 90278 USA

[2] Univ Calif Los Angeles, Los Angeles, CA USA

[3] BEI Technol Inc, COO, Goleta, CA USA

[4] BEI Technol Inc, CTO, Goleta, CA USA

[5] Systron Donner Corp, Concord, CA USA

[6] Univ Calif Los Angeles, Elect Engn, Dept Biomed Engn, Calif NanoSyst Inst CNSI, Los Angeles, CA 90024 USA

[7] Univ Calif Los Angeles, Sch Med, Dept Surg, Los Angeles, CA 90024 USA

[8] IEEE, New York, NY USA

[9] Opt Soc Amer, Washington, DC USA

[10] Amer Phys Soc, College Pk, MD USA

来源：

IEEE INSTRUMENTATION & MEASUREMENT MAGAZINE | 2015年 / 18卷 / 02期

关键词：

Frequency estimation - Analog to digital conversion - Bandwidth - Signal processing - Ultra-wideband (UWB);

D O I：

10.1109/MIM.2015.7066680

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Determining the instantaneous frequency of a signal is required for many applications ranging from radio astronomy to defense applications. Unfortunately, the scan rate is often too long over a wideband spectrum compared to the time scale of signals of interest. We present an instantaneous frequency measurement receiver, which allows for simultaneous measurement of multiple frequencies and amplitudes across an ultra-wide instantaneous bandwidth. Powered by the photonic time stretch A/D converter, the high effective sampling throughput of the system provides high temporal resolution and improvement of frequency and amplitude estimation capability through advanced signal processing. This flexible system has adjustable instantaneous bandwidth and frequency resolution, an ultrafast sweep time, and reduced hardware complexity compared to other instantaneous frequency measurement systems. © 1998-2012 IEEE.

引用

页码：26 / 30

页数：5

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