Spectral arrangement and other topics in first-order bandpass sampling theory

Author

Liu, Jianhua ; Zhou, Xiyuan ; Peng, Yingning

Author_Institution

Commun., Telemetry, & Telecontrol Res. Inst., Shijiazhuang, China

Volume

49

Issue

6

fYear

2001

fDate

6/1/2001 12:00:00 AM

Firstpage

1260

Lastpage

1263

Abstract

A problem of first-order bandpass sampling is that the indifferent disposition of the baseband spectrum may cause inconvenience in practical applications. To overcome it, we modify the first-order bandpass sampling theory according to the spectral arrangement of the sampled signal. We consider two situations on the arrangement of the shifted replicas of the bandpass signal spectrum: the normal and the inverse placement of the spectrum. The positive spectrum of the bandpass signal is placed in the lowest positive part of the sampled signal in the normal placement situation and in the lowest negative part in the inverse situation. The sampling frequencies are formulated in a cluster of lower and upper bounds in both situations, and robust sampling frequencies are given. Topics of the modified theory related to applications are addressed

Keywords

inverse problems; signal sampling; spectral analysis; bandpass signal spectrum; baseband spectrum; first-order bandpass sampling; first-order bandpass sampling theory; inverse spectrum placement; lower bounds; normal spectrum placement; positive spectrum; robust sampling frequencies; sampled signal; shifted replicas; spectral arrangement; upper bounds; Baseband; Cutoff frequency; Nonuniform sampling; Radar measurements; Radar theory; Robustness; Sampling methods; Sonar; Telemetry; Upper bound;

fLanguage

English

Journal_Title

Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1053-587X

Type

jour

DOI

10.1109/78.923308

Filename

923308