Ambiguity function analysis for the chirp diverse waveform (CDW)

被引：14

作者：

Vannicola, VC ^{[1
]}

Hale, TB ^{[1
]}

Wicks, MC ^{[1
]}

Antonik, P ^{[1
]}

机构：

[1] Res Associates Def Convers, Marcy, NY 13403 USA

来源：

RECORD OF THE IEEE 2000 INTERNATIONAL RADAR CONFERENCE | 2000年

关键词：

D O I：

10.1109/RADAR.2000.851913

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：

We evaluate the radar performance for chirp pulse (linear FM) trains in which the chirp rate is diverse from pulse to pulse. The evaluation consists of deriving the ambiguity function in generalized form for any number of pulses, pulse repetition rate, time bandwidth product, and diversity spread across the pulse train. Since each pulse has a different chirp rate, convolution and factorization can not provide closed form expressions for the ambiguity functions of interest. However, numerical integration, programmed in MatLab, revealed the effects of degree of chirp diversity and time bandwidth product on the waveform's ambiguity diagram. The recurrent lobe structure of the three dimensional ambiguity diagram was of special interest. We present a simple formula for selecting the different chirp rates for particular diversity spreads. We conclude that a dramatic decrease in the range recurrent lobe level occurs as we increase the time bandwidth product and/or degree of chirp diversity.

引用

页码：666 / 671

页数：6

共 6 条

[1]

[Anonymous], 1967, RADAR SIGNALS

[2]

COOK CE, 1988, IEEE T AERO ELEC SYS, V24, P823

[3] Physical wavelets and radar: A variational approach to remote sensing [J].