Advanced multifrequency radar instrumentation for polar research

F Rodriguez-Morales, S Gogineni… - … on Geoscience and …, 2013 - ieeexplore.ieee.org
This paper presents a radar sensor package specifically developed for wide-coverage
sounding and imaging of polar ice sheets from a variety of aircraft. Our instruments address …

Stepped-frequency processing by reconstruction of target reflectivity spectrum

AJ Wilkinson, RT Lord, MR Inggs - Proceedings of the 1998 …, 1998 - ieeexplore.ieee.org
This paper describes a processing technique for combining stepped-frequency waveforms
efficiently to obtain higher range resolution. Essentially this method involves the …

High resolution SAR processing using stepped-frequencies

RT Lord, MR Inggs - … . Remote Sensing-A Scientific Vision for …, 1997 - ieeexplore.ieee.org
This paper demonstrates a method to produce high resolution SAR images using stepped-
frequencies. An advantage of the stepped-frequency approach is the reduction of the …

A contrast-based algorithm for synthetic range-profile motion compensation

F Berizzi, M Martorella, A Cacciamano… - IEEE Transactions on …, 2008 - ieeexplore.ieee.org
In stepped-frequency radar, target motions produce range-profile distortions. Range shift,
signal-to-noise ratio loss, and symmetric spreading are produced by target radial velocity …

High range resolution radar using narrowband linear chirps offset in frequency

RT Lord, MR Inggs - Proceedings of the 1997 South African …, 1997 - ieeexplore.ieee.org
This paper introduces a method to combine a number of narrow-bandwidth chirp pulses
stepped in frequency in order to achieve high range resolution in SAR images. The …

A range profiling technique for synthetic wideband radar

F Berizzi, M Martorella, M Bernabo - IET Radar, Sonar & Navigation, 2008 - IET
A technique is proposed for reconstructing wide range profiles using stepped-frequency
waveforms (SWFs). The technique is based on reconstructing range sub-profiles. With …

Simultaneous polarization measurement and high-resolution imaging algorithm inspired by bat sound waveform

B Shen, T Liu, W Liu, G Gao - IEEE Journal on Miniaturization …, 2022 - ieeexplore.ieee.org
The acquisition and utilization of polarization information is an open topic because
polarization plays a significant role in many fields, such as radar target detection …

Improved stepped-frequency SAR imaging algorithm with the range spectral-length extension strategy

T Zeng, L Liu, Z Ding - IEEE Journal of Selected Topics in …, 2012 - ieeexplore.ieee.org
In order to achieve a high range resolution and low instantaneous bandwidth, stepped
frequency synthetic aperture radar (SAR) is widely used with stepped-frequency chirps and …

径向速度对频率步进雷达目标距离像影响分析

李海英, 杨汝良 - 电子与信息学报, 2003 - jeit.ac.cn
脉间频率步进波形是一种高距离分辨率信号形式, 它通过子脉冲载频的步进变化来获得大的有效
带宽, 显著降低了系统的瞬时带宽和对接收机硬件的要求. 但该信号对目标径向速度非常敏感 …

Stepped frequency chirp signal SAR imaging

D Hongxing - 2007 1st Asian and Pacific Conference on …, 2007 - ieeexplore.ieee.org
To achieve high range resolution using the stepped frequency chirp signal, two or more
chirp waveforms are sequentially transmitted and received at stepped carrier frequencies in …