MyJournals Home  

RSS FeedsSensors, Vol. 19, Pages 2696: OFDM Chirp Waveform Design Based on Subchirp Bandwidth Overlap and Segmented Transmitting for Low Correlation Interference in MIMO Radar (Sensors)

 
 

15 june 2019 08:03:15

 
Sensors, Vol. 19, Pages 2696: OFDM Chirp Waveform Design Based on Subchirp Bandwidth Overlap and Segmented Transmitting for Low Correlation Interference in MIMO Radar (Sensors)
 


There are some special merits for the orthogonal frequency division multiplexing (OFDM)chirp waveform as multiple input multiple output (MIMO) signals. This signal has high rangeresolution, good Doppler tolerance, and constant modulus superiority since it exploits a fullbandwidth and is based on chirp signals. The correlation sidelobe peaks level are critical for thedetection requirement of MIMO radar signals, however conventional OFDM chirp signals producehigh autocorrelation sidelobe peaks (ASP) and cross-correlation peaks (CP), which reducesdetection performance. In this paper, we explore the structure of OFDM chirp signals’autocorrelation function and proposed a scheme to reduce the designed signal’s ASP by a designingsuitable range of subchirp bandwidth and a segmented transmit-receive mode. Next, we explore asuitable range of interval between the chirp rates of each two signals to reduce the CP. Thesimulation of designed signals verifies the effectiveness of the proposed methods in the reductionof ASP and CP, with the correlation performance being compared with recent relate studies. Inaddition, the multiple signals detection and one-dimensional range image simulation show thegood detection performance of a designed signal in MIMO radar detection.


 
74 viewsCategory: Chemistry, Physics
 
Sensors, Vol. 19, Pages 2697: Single-Walled Carbon Nanotubes (SWCNTs) as Solid-Contact in All-Solid-State Perchlorate ISEs: Applications to Fireworks and Propellants Analysis (Sensors)
Sensors, Vol. 19, Pages 2695: Convolutional Recurrent Neural Network-Based Event Detection in Tunnels Using Multiple Microphones (Sensors)
 
 
blog comments powered by Disqus


MyJournals.org
The latest issues of all your favorite science journals on one page

Username:
Password:

Register | Retrieve

Search:

Physics


Copyright © 2008 - 2024 Indigonet Services B.V.. Contact: Tim Hulsen. Read here our privacy notice.
Other websites of Indigonet Services B.V.: Nieuws Vacatures News Tweets Nachrichten