SAW Quadraphase Code Generator

Radar emissions are now subject to regulation that limits their spectral splatter. Quadraphase codes are used to make an MSK-like pulse that has a narrower spectrum than a biphase pulse, and furthermore, it is tolerant of filtering. The design of a SAW pattern is described which yields a device that...

Full description

Saved in:
Bibliographic Details
Published inIEEE transactions on microwave theory and techniques Vol. 29; no. 5; pp. 410 - 414
Main Author Vale, C.R.
Format Journal Article
LanguageEnglish
Published IEEE 01.05.1981
Subjects
Correlators
Delay
Encoding
Filtering
Filters
Frequency synthesizers
Pulse generation
Radar
Space vector pulse width modulation
Surface acoustic waves
Online AccessGet full text

Cover

More Information
Summary:Radar emissions are now subject to regulation that limits their spectral splatter. Quadraphase codes are used to make an MSK-like pulse that has a narrower spectrum than a biphase pulse, and furthermore, it is tolerant of filtering. The design of a SAW pattern is described which yields a device that is both an encoder and filter. When it is energized by an impulse a valuable, spectral limited radar pulse is generated. The performance of this pulse is shown to meet certain desirable criteria. The correlator for the pulse is simply derived from the code generator and its performance is shown. Comparison with non-SAW methods of performing the same functions is given.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0018-9480
DOI:10.1109/TMTT.1981.1130370