Analysis of continuous-wave Doppler waveforms acquired from peripheral arteries has been a cornerstone of vascular laboratory testing for decades. However, appropriate terminology for describing waveform morphology still remains controversial. Many clinicians classify waveforms on the basis of phasicity because...
EE3-27: Principles of Classical and Modern Radar Continuous Wave (CW) Radar (十三) Professor A. Manikas Department of Electrical & Electronic Engineering Imperial College London February 2020 (v.21a) CW Radar Classication 连续波雷达(Continuous wave (CW) )连续发射信号,同时连续接收物体散射的回波反...
成像合成孔径雷达多普勒dopplerwaveforms分辨 第36 卷 第 6 期系统工程与电子技术 Vol.36 No.6 2014 年 6 月 SystemsEngineering andElectronicsJune2014 文章编号: 1001-506X ( 2014 ) 06-1057-05 网址: www.sys-ele.com 收稿日期: 20130509 ;修回日期: 20131115 ;网络优先出版日期: 20140311 。 网络优先出...
On the Doppler Bias of Hyperbolic Frequency Modulation Matched Filter Time of Arrival Estimates The purpose of this paper is to introduce an extended matched filter for hyperbolic frequency modulation (HFM) waveforms in active sonar systems, along wit... JJ Murray - 《IEEE Journal of Oceanic Engin...
The CW signal is also useful in velocity measuring radars such as airborne Doppler navigation radars, artillery muzzle velocity and police radars. In military applications CW waveforms are sometimes referred to as low probability of intercept (LPI) waveforms, because of their low peak power. This ...
In the Arctic, subglacial discharge plumes have been recently recognised as a key driver of fjord-scale circulation. However, owing to the danger that accompanies prolonged observations at plumes, no time-series data are available. Here, we present resul
In conclusion, we describe the application of a novel hands-free continuous wave Doppler ultrasound patch fixed in place over the common carotid artery to continually measure blood flow velocities. An automated algorithm has been implemented to automatically segment the Doppler waveforms and calculate bl...
healthy volunteers, we show that the phased array can be used to monitor Doppler spectra from cardiac tissues, record central blood flow waveforms and estimate cerebral blood supply in real time. Stretchable and conformal skin-worn ultrasonic phased arrays may open up opportunities for wearable ...
wave of the ECG35. Typically, the PEP is measured using pulsed doppler echocardiography (ECHO)36. Another technique is to measure the time between the B-point of the impedance cardiogram (ICG) (aortic valve opening) and the start of the Q-wave of the ECG37. The accuracy of the two ...
A single antenna FM radio altimeter operates in continuous wave (CW) and interrupted continuous wave (ICW) modes to provide an altitude indication. An altimeter transmitter generates a constant FM per