Transmitter Noise Compensation - A Signal Processing Technique for Improving Clutter Suppression

Ngo, M.T.; Gregers‐Hansen, V.; Ward, H.R.

doi:10.1109/radar.2006.1631872

Cited by 4 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This concept is termed decentralised radar network (DRN) [5], or non-coherent DRS [7,8]. When the distance to the auxiliary receiver is relatively small, different approaches for transferring auxiliary receiver data to the main radar can be used, like optical fibre [9] or microwave link [10]. The scene in Fig.…”

Section: Introductionmentioning

confidence: 99%

Contribution of auxiliary coherent radar receiver to target's velocity estimation

Cohen

Levanon

2018

IET Radar, Sonar & Navigation

View full text Add to dashboard Cite

Recent progress in bistatic radar techniques can be used to improve performances of classical monostatic radar. A prominent limitation of coherent radar is its inability to measure the complete velocity vector (magnitude and direction) of a detected target. A single coherent detection can provide range-rate only. At least two detections, separated in time, are needed to estimate the target's velocity vector. This study discusses how the velocity vector can be determined by two simultaneous detections spaced in distance. The second detection is obtained by an auxiliary distant bistatic coherent receiver; an approach proposed in the 1990s to enhance meteorological radar. Being a very simple case of a distributed radar system allows for a simple demonstration of how to calculate the target's position and velocity vector and how to analyse the estimation accuracy, including geometric dilution of precision plots of the velocity error. Also discussed are two methods to identify correct data association when more than one target is detected.

show abstract

Section: Introductionmentioning

confidence: 99%

Contribution of auxiliary coherent radar receiver to target's velocity estimation

Cohen

Levanon

2018

IET Radar, Sonar & Navigation

View full text Add to dashboard Cite

show abstract

“…[7][8][9] use adaptive algorithm to correct the I/Q imbalance error, but it is worth to note that adaptive algorithm is unsuitable for SAR raw data correction owing to its huge data rate. Mai T. Ngo, Vilhelm Gregers-Hansen, and Harold R. Ward [10] present the Transmitter Noise Compensation (TNC) technique to correct the nonideal transfer function of RF front-end on digital domain during signal processing. However, the channel error correction for wideband SAR system has been seldom considered in the case of coexisting nonideal RF front-end transfer function with I/Q imbalance in the modulator/demodulator.…”

Section: Introductionmentioning

confidence: 99%

Channel error correction for wideband sar—A joint multiple subpulses processing method

Chen

Jiang

Xiang

2011

J. Electron.(China)

View full text Add to dashboard Cite

A novel method, referred to as joint multiple subpulses processing, is developed to calibrate the nonideal transfer function of radio frequency front-end and I/Q imbalance in quadrature modulate/demodulate systems simultaneously, which frequently occur in wideband Synthetic Aperture Radar (SAR) systems. Based on the time-frequency relation of the chirp signal and the analyses of the channel errors in wideband SAR, joint multiple subpulses processing method is adopted to separate the image frequency component due to the I/Q channel error. Then, the complete description of the channel error is acquired for building the correction function, which is used to correct the radar raw echo in frequency domain. The validity and capability of this method are demonstrated by the experiments of the channel error correction on the high resolution SAR system with the effective bandwidth of 500 MHz.

show abstract

An efficient Pulse Doppler Radar block level modeling with Xilinx System Generator

Penumutchi¹,

Satti²,

Ykuntam³

2022

2022 2nd International Conference on Artificial Intelligence and Signal Processing (AISP)

View full text Add to dashboard Cite

Transmitter Noise Compensation - A Signal Processing Technique for Improving Clutter Suppression

Cited by 4 publications

References 0 publications

Contribution of auxiliary coherent radar receiver to target's velocity estimation

Contribution of auxiliary coherent radar receiver to target's velocity estimation

Channel error correction for wideband sar—A joint multiple subpulses processing method

An efficient Pulse Doppler Radar block level modeling with Xilinx System Generator

Contact Info

Product

Resources

About