Results 21 to 30 of about 784,273 (337)
Method of Range Ambiguity Suppression Combining Sparse Reconstruction and Matched Filter
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022 Synthetic aperture radar (SAR) images are often affected by range ambiguity due to antenna sidelobe characteristics and pulse operating mechanism. The work of range ambiguity suppression focuses on both SAR system design and signal processing. On the one
Meng Qi +4 more
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Time-varying microwave photonic filter for arbitrary waveform signal-to-noise ratio improvement [PDF]
, 2022 A time-varying microwave photonic filter (TV-MPF) based on stimulated Brillouin scattering (SBS) is proposed and utilized to suppress the in-band noise of broadband arbitrary microwave waveforms, thereby improving the signal-to-noise ratio (SNR). The filter-controlling signal is designed according to the signal to be filtered and drives the TV-MPF so ...
arxiv +1 more source
Adaptive filters and multichannel signal processing [PDF]
Proceedings of the IEEE 2000 Adaptive Systems for Signal Processing, Communications, and Control Symposium (Cat. No.00EX373), 2002 Processing multichannel signals using digital signal processing techniques has received increased attention lately due to its importance in applications, such as multimedia technologies and telecommunications. The perspective of the topic offered here is one that comes primarily from work done in the field of multichannel image processing. The adaptive
Konstantinos N. Plataniotis +1 more
openaire +2 more sources
A Frequency-Correcting Method for a Vortex Flow Sensor Signal Based on a Central Tendency
Sensors, 2020 A vortex flow meter employs a sensor based on the piezoelectric vibration principle to realize vortex signal acquisition, and therefore the measurement results are susceptible to vibration noise.
Bin Li, Chengyi Wang, Jie Chen
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Low Power Systolic Array Based Digital Filter for DSP Applications
The Scientific World Journal, 2015 Main concepts in DSP include filtering, averaging, modulating, and correlating the signals in digital form to estimate characteristic parameter of a signal into a desirable form.
S. Karthick, S. Valarmathy, E. Prabhu
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Topological IIR Filters over Simplicial Topologies via Sheaves [PDF]
, 2020 Topology offers a means to formally generalize digital filtering methods based on digital linear translation-invariant (LTI) filters while also, in principle, incorporating translation-variant and nonlinear methods as well as studying large scale (global) properties of filter problems.
arxiv +1 more source
Non-iterative Filter Bank Phase (Re)Construction [PDF]
, 2022 Signal reconstruction from magnitude-only measurements presents a long-standing problem in signal processing. In this contribution, we propose a phase (re)construction method for filter banks with uniform decimation and controlled frequency variation. The suggested procedure extends the recently introduced phase-gradient heap integration and relies on ...
arxiv +1 more source
Low-Pass Parabolic FFT Filter for Airborne and Satellite Lidar Signal Processing
Sensors, 2015 In order to reduce random errors of the lidar signal inversion, a low-pass parabolic fast Fourier transform filter (PFFTF) was introduced for noise elimination.
Zhongke Jiao +3 more
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FIR to FIR Model Reduction with Linear Group Delay in Passband by SDP Optimization
Journal of Electrical and Computer Engineering, 2020 Filter model reduction is an important optimization method in digital signal processing. A method of FIR to FIR model reduction using SDP optimization is proposed in this paper. At first, we use SDP to design an original FIR filter.
Haijiang Hu +2 more
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Integration of Brillouin and passive circuits for enhanced radio-frequency photonic filtering
APL Photonics, 2019 Signal processing using on-chip nonlinear or linear optical effects has shown tremendous potential for RF photonic applications. Combining nonlinear and linear elements on the same photonic chip can further enable advanced functionality and enhanced ...
Yang Liu +12 more
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