Doppler radar tomography is a technique which uses only the Doppler profiles of a rotating target as projections in two-dimensional radar tomography to obtain an image of the target. The work demonstrates, for the first time, the application of the fractional Fourier transform and the S-Method in improving the image resolution. The performance is shown to be significantly better than that avail...

A Doppler filter bank (DFB) is the heart of pulsed Doppler radar and gives clutter filtering and coherent integration. With these capabilities, it provides the improvement of detection probability as well as velocity discrimination, which can detect small targets in clutter environment. This paper implements a DFB with parallel processing configuration using multiple digital signal processors (...

A method is presented by which combined S-band polarimetric weather radar and UHF wind profiler observations of precipitation can be used to extract the properties of liquid phase hydrometeors and the vertical velocity of the air through which they are falling. Doppler spectra, which contain the air motion and/or fall speed of hydrometeors, are estimated using the vertically pointing wind profi...

An approach to predict real-time & Matlab Simulation Technique for realisation of speed, classification, ranging of different moving and static target in hostile environment using MIMO Radar.LMS & NLMS Algorithms, TCF are used for unwanted noise & clutter elimination technique using Matlab Programming. In this context authors are try to make an automated system that adjust target’s dynamic char...

Superiority of poly-alphabetic sequences (PAS) for pulse compression radar over the binary and ternary sequences was established earlier. However, the enlarged alphabets in poly–alphabetic sequences deteriorate the noise and Doppler robustness at higher lengths in high resolution radar (HRR) systems. In this paper, poly-semantic sequences (PSS) with restricted alphabet {+1,-1} are considered an...

Classification of targets using their micro-Doppler signatures has attracted a growing interest in recent years. In addition to their main bulk translation, targets may exhibit additional motions, such as vibrations and rotations, which generate Doppler modulations in the echo that contain unique target features and thus can be used to perform target recognition. Although target classification ...

The concept of cepstrum thresholding (CT) is applied to estimate smoothed nonparametric spectrum. The CT method is applied to Mesosphere, Stratosphere and Troposphere (MST) radar data for spectral cleaning. This method is not superior as compared with the conventional Periodogram method. So, to enhance the spectral visibility in Doppler Profile (DP), the CT technique is modified. The modified c...

In this work the author demonstrated a robust and efficient method for implementing Doppler classification through the use of Linear Discriminant Analysis (LDA). LDAs were used to reduce dramatically the data dimensionality and thereby eliminate redundancy and improve the efficiency of the classifier. The performance was assessed on a three-class problem of personnel, tracked and wheeled vehicl...

Nowadays, most of the electronic devices used Digital Signal Processing (DSP). This paper discussed the block diagram, radar detection, implementation of a convolution, Doppler processing, scanning, compression and filtering that been used in the applications of DSP in Radar purposes. Keywords–Digital Signal Processing (DSP), Filter, Pulse, Radar, System