In the experiment, two-band LFM pulses with 20-GHz bandwidth in the THz band are photonically generated based on frequency-to-time mapping, resulting in a synthetic LFM signal with 40-GHz bandwidth operating within the 315-360 GHz. As a benefit, a range resolution as high as 3.9 mm over...
TheTechnologiesofHighResolutionRangeMeasurementApplyingLFMPulses 利用线性调频脉冲的几种高分辨测距技术 www.ilib.cn 8. Movementparameterestimationinhighresolutionrangeprofile ofspaceobject 空间目标高分辨距离像运动参数估计 ilib.cn 9. MovementParameterEstimationinHighResolutionRangeProfile ...
pha = beta*td + alpha*td.^2;% Chirp (LFM) phasefork=1:Na% Loop for CPM harmonicspha = pha + ar(k)*cos((w(N/2+1+k)-wc)*td + ter(k));end% s(t) is the echoed signal from the target scene.s = s + fn(i)*exp(1i*pha).*(td >= 0 & td <= Tp);end Ste...
Real-time processing of an 8-GHz LFM signal is achieved with a sampling rate of 500 MSa/s. Accurate distance measurement is implemented with a maximum error of 4 mm within a range of ~3.5 meters. Detection of two targets is demonstrated with a range-resolution as high as 1.875 cm. ...
1.Analysis and Process of High Range Resolution Imaging Radar Signal;高距离分辨成像雷达的信号分析与处理 2.Most operating radar systems don′t have sufficient frequency bandwidth to produce high range resolution(HRR) profile of a target.大多数现役雷达频带不够宽,不能直接得到目标的高距离分辨(HRR)剖面...
In the past, the selection criteria for cameras predominantly focused on resolution, sensitivity, and frame rate. However, High Dynamic Range (HDR) technology has emerged as a key catalyst, especially for embedded vision systems that operate in environments that face challenging and varying l...
Do not confuse HDR with other display-related acronyms such as Ultra High Definition (UHD) and 4K, as these terms only relate to display resolution (how many lines of pixels a display contains, which in turn determines how detailed each video or still image can be). HDR is often associated...
High linearity and low noise are important conditions for high-resolution imaging in wideband linear frequency modulation (LFM) radar systems, where stretch processing is commonly adopted. However, in practice, hardware may introduce amplitude and phase distortions to radar signals. The distortions will...
Effects of RFI on UWB-SAR using LFM waveforms The dual requirement of ultra-wide band synthetic aperture radar (UWB-SAR) for high range resolution and low frequency penetration proposes the problem of ... X Huang,Z Zhou,D Liang - International Conference on Radar 被引量: 5发表: 2001年 Hig...
which is caused by the relatively rough surface of the substrate. The accurate atomic-resolution LFM raw image of monolayer and bilayer TB-MoS2with an angle of 90.0° is shown in Fig.2m. The FFTs of the monolayer and bilayer MoS2show a slight deformation due to the thermal drift, which is...