Novel windowing technique realized in FPGA for radar system

E. Escamilla-Hernandez; V.F. Kravchenko; V.I. Ponomaryov; Arai Ikuo

doi:10.1117/12.643274

15 February 2006 Novel windowing technique realized in FPGA for radar system

E. Escamilla-Hernandez, V.F. Kravchenko, V.I. Ponomaryov, Arai Ikuo

Proceedings Volume 6063, Real-Time Image Processing 2006; 60630F (2006) https://doi.org/10.1117/12.643274
Event: Electronic Imaging 2006, 2006, San Jose, California, United States

Abstract

To improve the weak target detection ability in radar applications a pulse compression is usually used that in the case linear FM modulation can improve the SNR. One drawback in here is that it can add the range side-lobes in reflectivity measurements. Using weighting window processing in time domain it is possible to decrease significantly the side-lobe level (SLL) and resolve small or low power targets those are masked by powerful ones. There are usually used classical windows such as Hamming, Hanning, etc. in window processing. Additionally to classical ones in this paper we also use a novel class of windows based on atomic functions (AF) theory. For comparison of simulation and experimental results we applied the standard parameters, such as coefficient of amplification, maximum level of side-lobe, width of main lobe, etc. To implement the compression-windowing model on hardware level it has been employed FPGA. This work aims at demonstrating a reasonably flexible implementation of FM-linear signal, pulse compression and windowing employing FPGA's. Classical and novel AF window technique has been investigated to reduce the SLL taking into account the noise influence and increasing the detection ability of the small or weak targets in the imaging radar. Paper presents the experimental hardware results of windowing in pulse compression radar resolving several targets for rectangular, Hamming, Kaiser-Bessel, (see manuscript for formula) functions windows. The windows created by use the atomic functions offer sufficiently better decreasing of the SLL in case of noise presence and when we move away of the main lobe in comparison with classical windows.

Citation Download Citation

E. Escamilla-Hernandez, V.F. Kravchenko, V.I. Ponomaryov, and Arai Ikuo "Novel windowing technique realized in FPGA for radar system", Proc. SPIE 6063, Real-Time Image Processing 2006, 60630F (15 February 2006); https://doi.org/10.1117/12.643274

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
9 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Field programmable gate arrays

Radar

Signal processing

Atrial fibrillation

Digital signal processing

Signal to noise ratio

Frequency modulation

Show All Keywords

Keywords/Phrases

Search In:

Publication Years