2018 Paper on “Doppler Tolerant Modified P4 Code (DTMP4 code) For Pulse Compression Radar”

6 Jan 2020 11:45 AM


Pulse compression refers to the design of a radar waveform, i.e. a “pulse compressed waveform”, so that its matched Alter response or, equivalently, its autocorrelation function (ACF), has a narrow main lobe. The narrow ACF lobe enhances the ability to resolve between closely spaced targets, i.e. good range resolution, without relying entirely on narrow pulse widths, which, at a fixed pulse amplitude, lowers the pulse energy and degrades the detection range. The appearance of sidelobes in the ACF that mask targets with low return signal power presents a challenge in the design of pulse compression waveforms. Additionally, the Doppler tolerance of pulse compression waveforms need to be examined. That is, the behavior of the sidelobe level (SLL) should be kept low to preserve good range resolution even as the velocity of the target increases. In this paper, a new pulse compression waveform called Doppler Tolerant Modified P4 Code (DTMP4 Code) is presented and analyzed. The waveform can be generated by modulating a pulse using linear frequency modulation (LFM) then applying phase coding (P4 Code) to the resulting waveform. Simulation results shows that the proposed waveform has lower average SLL than the LFM and P4 code. In addition, it is less affected by Doppler shift compared to the P4 Code.




Joel Joseph S. Marciano Jr., PhD
Acting Director

Dr. Marciano, Jr. Joined the DOST-ASTI in March 2016 as its Acting Director. He is a licensed Electronics Engineer who graduated with a degree in Bachelor of Science in Electrical Engineering from the University of the Philippines, Diliman and was conferred with Doctorate Degree in Electrical Engineering from the University of New South Wales.

Under his leadership, the DOST-ASTI is reviving and ramping up its research on radio frequency (RF) electronics. This is done through various research projects, some of which are in collaboration with the UP-EEEI. Aside from form overseeing the operations of the DOST-ASTI, Dir. Marciano Jr. is currently engaged in several projects such as Communications Relay Buoys for the Communications Relay for CoCoMoNets, Development and Deployment of Advanced Spectrum Platform Network, Development of Software Defined Radio (SDR) based Satellite Telemetry and Telecommand System Simulator Projects, and Development of Extreme Weather Monitoring and Information Sharing System in the Philippines as Project Adviser, as well as the Project Leader of EPDC as Platform for Inclusive Innovation Program (EPIIC) and Synthetic Aperture Radar (SAR) and Automatic Identification System (AIS) for Innovative Terrestrial Monitoring and Maritime Surveillance.

Neon S. de Jesus

Published on

21 June 2018

Presented in

2017 IEEE International Symposium on Signal Processing and Information Technology (ISSPIT)

Published at

IEEE Xplore Digital Library

Link to Publication