Moving target indication

About: Moving target indication is a research topic. Over the lifetime, 2653 publications have been published within this topic receiving 32435 citations.

Moving target indication with non-linear radar

Abstract: A new approach for detecting a particular class of moving targets is presented. This method exploits characteristics of specific non-linear targets to both eliminate moving objects that are not of interest and suppress stationary clutter. Details of the underlying physical phenomena are discussed, and the signal processing procedures leveraged by the non-linear radar system are outlined in detail.

Weak Target Detection Based on Keystone Transform

Abstract: The improvement of the capability to detect moving target with very small radar signature is usually realized by long term accumulation.According to the design principle of conventional PD(Pulse Doppler) radar,target's range migration can't exceed half of the range resolution cell in coherent integration time,which means that the accumulation time is restrained by target's motion.For high range resolution radar or the radar system focusing on the detection of fast moving targets,such a restriction is difficult to satisfy.In this paper,a novel motion compensation method based on keystone transform is presented,which can correct range migration without the exact value of target velocity,and as a result,make the accumulation time free of the restriction due to target motion.

Method of processing in a pulse doppler radar

Abstract: A method of operating a pulse Doppler radar to increase the probability of detection of an airborne target is shown to consist of transmitting interrogating pulses with a high pulse repetition frequency and processing received signals using any conventional pulse Doppler technique for echo signals having a Doppler shift frequency outside the spectrum of Doppler shift frequencies of clutter and using a DPCA technique at a submultiple of the pulse repetition frequency for echo signals having a Doppler shift frequency within the spectrum of Doppler shift frequencies of clutter.

Single composite pulse moving target indicator radar system

Abstract: A radar system transmits a single composite pulse having up and down sweep frequency components and target reflected pulses which are processed in a pulse compression arrangement. Signals reflected from moving targets result in processed pulses that move apart in time to produce an output indicative of a moving target; signals from stationary targets or clutter do not separate in time and are cancelled producing no output.

Optimal cooperative placement of GMTI UAVs for ground target tracking

Abstract: With the recent advent of moderate-cost unmanned (or uninhabited) aerial vehicles (UAV) and their success in surveillance, it is natural to consider the cooperative management of groups of UAVs. The problem considered in this paper is the optimization of the information obtained by a group of UAVs carrying out surveillance of several ground targets distributed over a large area. The UAVs are assumed to be equipped with ground moving target indicator (GMTI) radars, which measure the locations of moving ground targets as well as their radial velocities. In this research, the Fisher information, obtained from the information form of Riccati equation, is used in the objective function. Sensor survival probability and target detection probability for each target-sensor pair are also included in the objective function. The optimal sensor placement problem is solved by a combination of deterministic as well as randomized optimization. Simulation results on two different scenarios are presented for four different types of prior information.