Transmit diversity technique based on joint slow-time coding with circulating code

Circulating code provides a simple way to achieve transmit diversity with stable gain along wide angular coverage, whereas this property is at a cost of degraded range resolution. In this study, a novel transmit diversity technique referred to as joint slow-time coding with circulating code (STCC) i...

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Bibliographic Details
Published in:IET radar, sonar & navigation Vol. 11; no. 8; pp. 1243 - 1250
Main Authors: Li, Shengyuan, Zhang, Linrang, Liu, Nan, Zhang, Juan, Tang, Shiyang
Format: Journal Article
Language:English
Published: The Institution of Engineering and Technology 01.08.2017
Subjects:
analysis stage
angle‐range property
coded pulse sequence
combined source‐channel coding
frequency band
interfering signal suppression
joint slow‐time coding with circulating code
range resolution
Research Article
signal processing
STCC
transmit ambiguity function
transmit diversity technique
wide angular coverage
signal processing
range resolution
AF
STCC
combined source-channel coding
angle-range property
transmit ambiguity function
joint slow-time coding with circulating code
wide angular coverage
transmit diversity technique
analysis stage
interfering signal suppression
coded pulse sequence
frequency band
ISSN:1751-8784, 1751-8792
Online Access:Get full text
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Summary:Circulating code provides a simple way to achieve transmit diversity with stable gain along wide angular coverage, whereas this property is at a cost of degraded range resolution. In this study, a novel transmit diversity technique referred to as joint slow-time coding with circulating code (STCC) is proposed and investigated to solve the above problem. The STCC can be regarded as a coded pulse sequence of circulating code which achieves full bandwidth after synthesising the frequency band of each pulse. It improves the range resolution while maintaining stable gain property of circulating code. At the analysis stage, the transmit ambiguity function (AF) is used to assess the angle-range property of STCC. Based on the transmit AF, a general processing procedure at receive side is derived. Finally, numerical experiments are carried out using simulated data. The performance assessment shows that the proposed technique is superior to circulating code in range resolution and interfering signal suppression.
ISSN:1751-8784
1751-8792
DOI:10.1049/iet-rsn.2016.0595