Results 11 to 20 of about 1,790,403 (266)
Application of Optimized Adaptive Chirp Mode Decomposition Method in Chirp Signal
Applied Sciences, 2020 The adaptive chirp mode decomposition method has a good effect on processing chirp signals. The parameter α controls the smoothness of the output signal. Too small an α will cause a smooth output signal.
Junyuan Wang +5 more
doaj +2 more sources
Using EMD-FrFT filtering to mitigate high power interference in chirp tracking radars [PDF]
, 2011 This letter presents a new signal processing subsystem for conventional monopulse tracking radars that offers an improved solution to the problem of dealing with manmade high power interference (jamming).
Soraghan, John, Elgamel, Sherif
core +4 more sources
Radar matched filtering using the fractional fourier transform [PDF]
, 2010 -A matched filter is the optimal linear filter for maximizing the signal to noise ratio (SNR) in the presence of additive noise. Matched filters are commonly used in radar systems where the transmitted signal is known and may be used as a replica to be ...
Clemente, Carmine +2 more
core +4 more sources
Coding and Coherent Decoding techniques for Continuous Single Slope Cyclic Shift Chirp Signal [PDF]
Radioengineering, 2023 Chirp signals are currently widely used in broadband and spread spectrum communications due to their advantageous features, such as immunity to fading noise, low power consumption, consistent long-range transmission, and constant bandwidth.
L. Kirasamuthranon +2 more
doaj
Leida xuebao, 2019 Communication signals are vital to the implementation of integrated radar and communication, which is an effective way to reduce platform volume and electromagnetic interference.
YANG Huiting +3 more
doaj +1 more source
International Journal of Aerospace Engineering, 2021 A common assumption in SAR image formation and processing algorithms is that the chirp rates of the transmitted and received radar signals are exactly the same. Dechirp processing is also done based on this common assumption. In real scenarios, the chirp
N. Rabiee, H. Azad, N. Parhizgar
doaj +1 more source
An RF-SoC-Based Ultra-Wideband Chirp Synthesizer
IEEE Access, 2022 This paper presents the design and development of a digital two-channel chirp synthesizer using a field-programmable gate array (FPGA) device. To achieve an integrated solution, the design was implemented on radio-frequency system-on-chip (RF-SoC ...
Omid Reyhanigalangashi +6 more
doaj +1 more source
Classification of chirp signals using hierarchical bayesian learning and MCMC methods [PDF]
, 2002 This paper addresses the problem of classifying chirp signals using hierarchical Bayesian learning together with Markov chain Monte Carlo (MCMC) methods.
Davy, Manuel +5 more
core +1 more source
Tracking and Mitigation of Chirp-Type Interference in GPS Receivers Using Adaptive Notch Filters [PDF]
, 2020 A Global Positioning System (GPS) receiver is extremely prone to intentional and unintentional interference due to weak signal power experienced on the surface of the earth, which severely affects the navigation functionality and occasionally avoids the ...
Syed Waqas Arif +5 more
core +1 more source
Radar Maneuvering Target Detection Based on Product Scale Zoom Discrete Chirp Fourier Transform
Remote Sensing, 2023 Long-time coherent integration works to significantly increase the detection probability for maneuvering targets. However, during the observation time, the problems that often tend to occur are range cell migration (RCM) and Doppler frequency cell ...
Lang Xia +4 more
doaj +1 more source