Precise Radar Target Ranging Estimation Based on Slip Matching of Envelopes
نویسندگان
چکیده
A novel precise radar target ranging method based on echo phases and slip matching of envelopes is presented in this paper. The method provides a high precision with rootmean-square error at sub-wavelength level, and it only requires envelopes of the echo pulses. The difficulty is matching procedure of envelopes. According to the principle of resolving ambiguous phases based on slip matching of envelopes, some restraint conditions for ambiguity resolution are proposed, and the theory of extracting ambiguous Doppler phases from wideband radar echoes is provided. The method provides a more convenient and precise way to resolve ambiguous phases, and the experiments have validated the performance of ranging capability. Index Terms — micro-motion, phase derived range, slip matching of envelopes, ambiguity resolution.
منابع مشابه
A Soft-Input Soft-Output Target Detection Algorithm for Passive Radar
Abstract: This paper proposes a novel scheme for multi-static passive radar processing, based on soft-input soft-output processing and Bayesian sparse estimation. In this scheme, each receiver estimates the probability of target presence based on its received signal and the prior information received from a central processor. The resulting posterior target probabilities are transmitted to the c...
متن کاملA New Method for Ground Moving Targets Tracking Using Radar Based on Compressed Sensing
In this paper, we propose a Compressed Sensing (CS) based method under the unknown sparse degree to track ground moving targets using Pulse-Doppler (PD) radar. We use the sparsity of delay-Doppler plane in the process of disposing PD radar echo to set up a sparse signal model in each pulse interval. At the state prediction stage, we can get the predicted values of target states by dynamic equat...
متن کاملExtending the Radar Dynamic Range using Adaptive Pulse Compression
The matched filter in the radar receiver is only adapted to the transmitted signal version and its output will be wasted due to non-matching with the received signal from the environment. The sidelobes amplitude of the matched filter output in pulse compression radars are dependent on the transmitted coded waveforms that extended as much as the length of the code on both sides of the target loc...
متن کاملSpectral Envelopes in Sound Analysis and Synthesis
In this project, Spectral Envelopes in Sound Analysis and Synthesis, various methods for estimation, representation, file storage, manipulation, and application of spectral envelopes to sound synthesis were evaluated, improved, and implemented. A prototyping and testing environment was developed, and a function library to handle spectral envelopes was designed and implemented. For the estimatio...
متن کامل3-Dimensional Imaging and Motion Estimation Method of Multiple Moving Targets for Multi-Static UWB Radar Using Target Point and Its Normal Vector
Radar systems using ultra-wideband (UWB) signals have definitive advantages in high range resolution. These are suitable for accurate 3-dimensional (3-D) sensing by rescue robots operating in disaster zone settings, where optical sensing is not applicable because of thick smog or high-density gas. For such applications, where no a priori information of target shape and position is given, an acc...
متن کامل