The most classical detector of active sonar and radar is the matched filter (MF), which is the optimal processor under ideal conditions. Aiming at the problem of active sonar detection, we propose a frequency-domain adaptive matched filter (FDAMF) with the use of a frequency-domain adaptive ...
A frequency-domain adaptive line enhancement based on matched filter (FDAMF) is a nonlinear filtering algorithm, which greatly improves the detection performance of matched filter in an additive white Gaussian noise. Due to strong reverberation interference, the detection performance of FDAMF drops ...
An efficient Fourier-domain implementation of the velocity filter is presented. The Sliding Discrete Fourier Transform (SDFT) is exploited to yield a Track-Before-Detect (TBD) algorithm with a complexity that is independent of the filter integration time. As a consequence, dim targets near the noi...
In this paper, a novel matched filter based timing and frequency synchronization method for multiple input multiple output orthogonal frequency division multiplexing (OFDM) systems is presented. Using a unique training symbol structure, matched filter based timing synchronization is employed for estimating ...
This paper presents a novel design of a time–frequency (t–f) matched filter as a solution to the problem of detecting a non-stationary signal in the presence of additive noise, for application to the detection of newborn seizure using multichannel EEG signals. The solution reduces to two ...
Matched filter circuit used for frequency-expansion communication目的是提供一种可用小规模电路,对长代码进行应付的匹配滤波器电路,其构成为设置用于乘法运算的采样保持电路,个数为长代码的一部分那么多,从可以保持与上述个数相等的PN代码的第1乘数寄存器并行f向采样保持电路输入乘数,在该PN代码之后还有要使用的PN代码...
We propose a theoretical evaluation of the matched filter bound (MFB) of L-branch antenna diversity with maximal-ratio-combining (MRC) in a frequency-selective Rayleigh-fading channel. The theoretical derivation is based on a Karhunen-Loeve expansion. Although many previous approaches of this kind ...
Feature extraction in the phase domain is based on electromagnetic scattering models which describe the sensor response to scene features. This idea of processing the SAR data using a filter matched to the phase history signature of a feature was introduced by Franceschetti (1997). Here, we ...
Work in47 is based on applying numerical methods to derive frequency domain pulse spectra/filter responses, optimised for specific modulation formats so as to result in non-T-orthogonal pulses that minimize bandwidth. Instead of optimizing out-of-band power emission for single carrier systems in ...
Matched filter detection is the next available technique to counter low SNR [4]. This method, however, presents many challenges as well since it requires a prior knowledge about primary user (PU) signals and CR need to be equipped with carrier synchronization and timing devices, leading to ...