Insect detection and density estimation based on a Ku-band scanning entomological radar
The Journal of Engineering, 2019 Entomological radars need to address the problem of insect density estimation. Here, a Ku-band experimental entomological radar with two-dimensional scanning mode is used to collect insect echo data.
Jiong Cai +4 more
doaj +1 more source
Continuous measurement of nitrate concentration in a highly event-responsive agricultural catchment in south-west of France: is the gain of information useful? [PDF]
, 2012 A nitrate sensor has been set up to measure every 10 min the nitrate signal in a stream draining a small agricultural catchment dominated by fertilized crops during a 2-year study period (2006–2008) in the south-west of France.
Dugast, Philippe +7 more
core +4 more sources
Filtering Property of Signal Sampling in General and Under-Sampling as a Specific Operation of Filtering Connected with Signal Shaping at the Same Time [PDF]
International Journal of Electronics and Telecommunications, 2020 In this paper, we show that signal sampling operation can be considered as a kind of all-pass filtering in the time domain, when the Nyquist frequency is larger or equal to the maximal frequency in the spectrum of a signal sampled.
Andrzej Borys
doaj +1 more source
Dynamic range analysis of one-bit compressive sampling with time-varying thresholds
The Journal of Engineering, 2019 From the point of view of statistical signal processing, the dynamic range for one-bit quantisers with time-varying thresholds is studied. Maximum tolerable amplitudes, minimum detectable amplitudes and dynamic ranges of this one-bit sampling approach ...
Xiaofeng Zhu, Liang Huang, Ziqian Wang
doaj +1 more source
Transport and Telecommunication, 2021 Increasing requirements in the field of security, in particular in the transport sector, the rescue work, the inviolability of private property and others urged to research work in the field of radar monitoring people, vehicles or other objects in the ...
Aristov Vladimir +5 more
doaj +1 more source
Segmented compressed sampling for analog-to-information conversion: Method and performance analysis [PDF]
, 2010 A new segmented compressed sampling method for analog-to-information conversion (AIC) is proposed. An analog signal measured by a number of parallel branches of mixers and integrators (BMIs), each characterized by a specific random sampling waveform, is ...
Taheri, Omid, Vorobyov, Sergiy A.
core +2 more sources
Segmented discrete polynomial-phase transform with coprime sampling
The Journal of Engineering, 2019 Segmented discrete polynomial-phase transform (DPT) integrates input signals to enable detection and parameter estimation of weak linear frequency modulated (LFM) signals.
Shengheng Liu, Yahui Ma, Tao Shan
doaj +1 more source
IEEE Open Journal of Antennas and Propagation, 2023 An eight element Subsampling Time Modulated Array (STMA) operating in receive mode with a carrier at 2.4 GHz is presented and demonstrated using bespoke Radio Frequency (RF) hardware.
Edward A. Ball +2 more
doaj +1 more source
Another Proof of Ambiguity of the Formula Describing Aliasing and Folding Effects in Spectrum of Sampled Signal [PDF]
International Journal of Electronics and Telecommunications, 2022 In this paper, a new proof of ambiguity of the formula describing the aliasing and folding effects in spectra of sampled signals is presented. It uses the model of non-ideal sampling operation published by Vetterli et al.
Andrzej Borys
doaj +1 more source
Total least square clutter cancellation in passive radar
The Journal of Engineering, 2019 In this study, a total least square (TLS) based cancellation method is proposed for suppressing direct and multipath clutter signals in passive radar.
Haihuan Wang, Xiaoyong Lyu, Long Ma
doaj +1 more source