[PDF] Top 20 An Improved Range-Doppler Algorithm for SAR Imaging at High Squint Angles
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An Improved Range-Doppler Algorithm for SAR Imaging at High Squint Angles
... modified range-Doppler algorithm (RDA), based on the range-azimuth coupling in the two-dimensional frequency domain, was proposed for SAR imaging at squint angles up ... See full document
12
An improved imaging algorithm for spaceborne MAPs sliding spotlight SAR with high-resolution wide-swath capability
... three-step algorithm is proposed in this paper for accurately processing MAPs- VHR sliding spotlight SAR ...hyperbolic range equation (MHRE) is presented firstly, which adds a cubic term into the ... See full document
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Nonlinear Frequency Scaling Algorithm for High Squint Spotlight SAR Data Processing
... the squint-mode spotlight SAR ...scaling algorithm, this method starts with the received signal dechirped in ...the squint mode, the reference range of the dechirping function is ... See full document
8
PROCESSING SQUINTED SAR RAW DATA USING RANGE DOPPLER ALGORITHM
... RADAR imaging technique is a very widely used in imaging ...the Range Doppler Algorithm ...is squint introduced into data. This paper deals with use of secondary range ... See full document
7
SAR Imaging on HEO Satellites with an Improved Frequency-Domain Algorithm
... HEO SAR mission, the Doppler centroid is extremely large when the satellite is far away from the apogee, due to high eccentricity of the ...of range samples than that in a low-squint ... See full document
13
A Novel Imaging Algorithm for Focusing High-Resolution Spaceborne SAR Data in Squinted Sliding-Spotlight Mode
... novel imaging algorithm has been proposed to process the high-resolution spaceborne squinted sliding- spotlight SAR ...The algorithm realizes RCMC, SRC and RC using the modified CS ... See full document
6
Squint mode GEO SAR imaging using bulk range walk correction on received signals
... frequency-domain SAR imaging algorithms include the omega-K methods presented by Claudio Prati and Fabio Rocca [8], the methods based on the chirp scaling [9], and the frequency domain algorithms proposed ... See full document
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A Large Scene Deceptive Jamming Method for Space-Borne SAR based on Time-Delay and Frequency-Shift with Template Segmentation
... jamming algorithm. First, the time-delay and frequency-shift (TDFS) algorithm is introduced to improve the jamming processing ...in range dimension and a frequency- shift term in azimuth ...TDFS ... See full document
22
Direct Geometric Positioning for the Three Dimensional Imaging Microware Altimeter
... three-dimensional imaging microware altimeter is a new type of altimeter, which combines with traditional altimeter height tracking measurement technology, SAR synthetic aperture technology and SAR ... See full document
6
Focusing high squint and large baseline one stationary bistatic SAR data using keystone transform and enhanced nonlinear chirp scaling based on an ellipse model
... the imaging problem for one-stationary bistatic synthetic aperture radar (BiSAR) with high- squint, large-baseline ...large range cell migration (RCM), severe range-azimuth coupling, ... See full document
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A High-Order Imaging Algorithm for High-Resolution Space-Borne SAR Based on a Modified Equivalent Squint Range Model
... precise range model and the second one is to develop an efficient imaging algorithm since traditional algorithms fail to process ultra-high resolu- tion space-borne SAR data ...novel ... See full document
12
Range Doppler Algorithm for Bistatic SAR Processing Based on the Improved Loffeld's Bistatic Formula
... the Doppler chirp rates of the transmitter and receiver are significantly ...bistatic imaging algorithms [11, 12] have been ...bistatic SAR). To extend LBF for the general bistatic SAR ... See full document
9
Effect of Baseline Separation Distance on GMT Velocity Estimation using Monopulse GMTI Technique in case of SAR
... get high resolution which is useful in case of GMT detection and ...of SAR is shown in Fig 1 where Vs is the platform velocity, d is the distance moved by the antenna between two transmitted pulses, Ro is ... See full document
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A Novel Wavenumber Domain Algorithm for Bistatic SAR Imaging Based on Equivalent Monostatic Model
... monostatic SAR, BiSAR can obtain more abundant scattering information for imaging targets, and it also has stronger anti-interference and anti-strike ...to imaging processing. Compared with other ... See full document
9
Interferometric ISAR Imaging on Squint Model
... (ISAR) imaging has received much attention in the past three decades ...Its high range resolution is attained by transmitting a wideband signal while it’s cross range resolution is dependent ... See full document
9
Compression Method for High Dynamic Range Intensity to Improve SAR Image Visibility
... an SAR image as a high dynamic range image (HDRI), we investigated studies to improve visibility of ...dynamic range of intensity has to be compressed to within 1,200 steps, while at the same ... See full document
5
An Improved Algorithm for Inducing Classifica...
... Ant colony optimization was [3] used to solve single optimization problem with reasonable amount of computational time. It is introduced based on the performance of physical ants. When ants are probing for food they ... See full document
9
An ISAR Imaging Method for Search Radar Involving Nonuniform Angle Samples
... (ISAR) imaging method with nonuniformly obtained angle ...a range profile, is obtained using frequency samples within a given ...the Doppler spectrum using range profiles obtained from ... See full document
9
A Novel Range Compression Algorithm for The~Resolution Enhancement in GNSS-SAR
... proposed range compression algorithm is also applicable for the GNSS-SAR receiver based on the other GNSS signals of ...superior range resolution should be achieved by employing the proposed ... See full document
11
Microwave Imaging Based on Wideband Range Profiles
... (2) The second line on the above formula is the discrete representation of the integral through θ, as the projection directions are always discontinuous in realistic implementation. It should be noticed that while the ... See full document
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