ultra-short pulse compression
Ultra-short pulse compression using photonic crystal fibre
... high compression factor obtainable with a photonic crystal fibre is partly due to the relatively small group velocity ...of ultra-short pulse ...
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Ultra low range sidelobe level pulse compression waveform design for spaceborne meteorological radars.
... RF short pulse to attain the required range ...the pulse compression ...the pulse carrier frequency enables the radar to attain the same range resolution properties with a longer RF ...
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Investigation on the Microwave Pulse Signal Compression with Ngd Circuit
... to ultra- fast laser systems [4–6], and then its use has become more and more common thanks to the development of chirped pulse amplification [7– ...broadband ultra-short pulse through ...
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Microwave pulse compression using a helically corrugated waveguide
... produce ultra-high power short microwave pulses f or a range of ...microwave pulse com pression. Sweep- frequency based microwave pulse co mpression using smooth bore hollow waveguides is one ...
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Gastrointestinal Electrical Neuromodulation for Functional Gastrointestinal Diseases, Obesity and Diabetes
... GES was first introduced for the treat- ment of obesity by using trains of short pulses (IGS), with parameters as follows: pulse width of 0.3–0.5 ms and frequency of 40 Hz and train on-time of 2 s and off- ...
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A 2.8-7.5 Pj/Pulse Highly-Flexible Impulse-Radio Ultra-Wideband Pulse-Generator
... The basic idea of most published IR-UWB PGs is to use a high-frequency waveform generator (HFWG), which can be an oscillator, phase-locked loop or delay-line (DL) etc., and shape the output signal to generate the desired ...
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Fast implementation for modified adaptive multi pulse compression
... multi- pulse compression (AMPC) was presented to success- fully suppress the range-Doppler sidelobe over a variety of stressing ...adaptive pulse compression (FAPC) was ...multi-pulse ...
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MAJOR ASPECTS THAT ARE CONSIDERED FOR A PULSE COMPRESSION TECHNIQUE
... The waveform window in the figure 2 shows the Behavioral simulation results of the generation of the six phase pulse compression sequence elements (0.5+jO.866), (0.5-jO.866) and (-0.5-jO.866), + 1 and The ...
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The molecular, cellular and behavioural effects of electroconvulsive stimulation in the rodent brain
... brief pulse, ultra brief pulse or sham ECS, consisting of ten ...different pulse widths were compared. Brief pulse but not ultra brief pulse ECS induced a significant ...
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Improving Compression of Short Messages
... Between 1997 and 1999 the GSM Association (GSMA) developed Technical Standard (TS) 03.42 [5,6], a stan- dard for compression of SMS messages. At the time Arithmetic Coding was possibly patent encumbered, and ...
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Ultra short term wind speed forecasting based on support vector machine with combined kernel function and similar data
... system. Ultra-short- term wind speed forecasting is an effective way to ensure real-time and accurate wind power ...a short-term wind speed forecasting method based on a support vector machine with a ...
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A population study comparing screening performance of prototypes for depression and anxiety with standard scales
... The measures of interest were short prototypes for Major Depressive Disorder, Generalised Anxiety Disor- der (GAD), Panic Disorder and Social Phobia. These are common mental health disorders that often require ...
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Ehberger, Dominik (2019): Electron pulse control with terahertz fields. Dissertation, LMU München: Fakultät für Physik
... probe pulse duration. Coulomb repulsion of the charged particles in the pulse and their dispersion in vacuum (see Chapter 2) limit the electron pulse dura- tion to typically hundreds of ...electron ...
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Optimization of coded singals based on wavelet neural network
... Radar is an electromagnetic system for the detection and location of objects. Radar stands for Radio Detection And Ranging [1]. It operates by transmitting a particular type of waveform, a pulse-modulated sine ...
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High-count-rate 3He position-sensitive detector system: NEUNET-HCR
... • Deadtime control: When a slow PSD signal is amplified with AMP14b with a fast time constant, it sometimes counts the signal twice (double counting). Therefore, a certain dead time is provided after the pulse ...
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Intra pulse modulation recognition using short time ramanujan Fourier transform spectrogram
... on Short-time Fourier transform (STFT) to distin- guish No Modulation, phase shift keying (PSK), frequency shift keying (FSK) and linear frequency modulation (LFM) sweeping a narrow band, it performs well when SNR ...
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Ultra short entropy for mental stress detection
... Approximate Entropy ApEn and Sample Entropy SampEn are measures of signals’ complexity and are widely used in Heart Rate Variability HRV analysis.. In particular, recent studies proved t[r] ...
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Assessment of Weighting Functions Used in Oppermann Codes in Polyphase Pulse Compression Radars
... There are reduction techniques developed to reduce the sidelobe levels. Lewis proposed sliding window two- sample subtractor to reduce the sidelobes for the polyphase codes [5]. Weighting in frequency and time domain can ...
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The use of pulse compression thermography for detecting defects in paintings
... and pulse-compression for studying thermal phenomena was pioneered by several rearch groups led by Mandelis [25-27] and Mulaveesala ...the Pulse Compression (PuC) algorithm outputs an accurate ...
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