Performance Evaluation of Barker Codes using New Pulse Compression Technique
نویسندگان
چکیده
Pulse compression is used to achieve large radiated energy but simultaneously a short pulse for range resolution. Range resolution is an ability of the receiver to detect nearby targets. Pulse compression can also detect small target signals out of clutter. The matched filter output consists of unwanted but unavoidable side lobes however the reduction of this side lobe strength is the active research topic in radar signal processing. In this paper a new technique is proposed to suppress the side lobes of radar signals that result from standard matched filtering. In this technique, it produces better peak side lobe ratio than all other conventional side lobe reduction techniques. In simulation results, the performance of this filter technique for Barker codes is compared with the amplitude shift code side lobe reduction technique.
منابع مشابه
A Technique for Pulse RADAR Detection Using RRBF Neural Network
Pulse compression technique combines the high energy characteristic of a longer pulse width with the high resolution characteristic of a narrower pulse width. The major aspects that are considered for a pulse compression technique are signal to sidelobe ratio (SSR), noise and Doppler shift performances. The traditional algorithms like autocorrelation function (ACF), recursive least square (RLS)...
متن کاملAssessment of Weighting Functions Used in Oppermann Codes in Polyphase Pulse Compression Radars
Polyphase is a common class of pulse compression waveforms in the radar systems. Oppermann code is one of the used codes with polyphone pattern. After compression, this code has little tolerant against Doppler shift in addition to its high side lobe level. This indicates that the use of Oppermann code is an unsuitable scheme to radars applications. This paper shows that the use of amplitude wei...
متن کاملImproving performance in pulse radar detection using Bayesian regularization for neural network training
A better approach for training a multi-layered feedforward network for pulse compression is presented. The Bayesian regularization technique used for training the network for pulse radar detection results in superior performance in terms of signal-to-sidelobe ratio compared to the Backpropagation algorithm. The presented method also has better range resolution performance in terms of resistance...
متن کاملGeneration and Implementation of Barker and Nested Binary codes
Recent advances in the development of semiconductors allow the realization of low cost hardware architecture for implementing Barker and Nested binary codes suitable for radar applications. Due to the fast development in Digital Signal Processors (DSP) they are used in radar signal processing. Radar signal processing is defined as exploitation of the received signal represented in digital form ...
متن کاملHigh Resolution Weather Radar through Pulse Compression
In order to evaluate pulse compression for use in phased array weather radar systems, modifications to the Time-Series Weather Radar Simulator have been made which incorporate phase-coding into its functionality. This allows for evaluating the performance of various pulse compression schemes under controlled conditions. Barker-coded pulses with matched and mismatched filters were examined in re...
متن کامل