Results 11 to 20 of about 1,626 (96)
System Performance of a Scalable 79 GHz Imaging MIMO Radar With Injection-Locked LO Feedthrough
IEEE Journal of Microwaves, 2021 The estimation of the direction-of-arrival in a coherent multi-channel radar system requires the distribution of the high-frequency local oscillator signal to all hardware channels.
Dominik Schwarz +5 more
doaj +1 more source
Automotive Frequency Modulated Continuous Wave Radar Interference Reduction Using Per-Vehicle Chirp Sequences [PDF]
Sensors, 2018 Recently, many automobiles adopt radar sensors to support advanced driver assistance system (ADAS) functions. As the number of vehicles with radar systems increases the probability of radar signal interference and the accompanying ghost target problems become serious.
Youn-Sik Son +2 more
openaire +3 more sources
Sensors, 2021 In synthetic aperture radar (SAR) imaging, geometric resolution, sidelobe level (SLL) and signal-to-noise ratio (SNR) are the most important parameters for measuring the SAR image quality.
Wei Xu +5 more
doaj +1 more source
IM/DD-Based 112-Gb/s/lambda PAM-4 Transmission Using 18-Gbps DML
IEEE Photonics Journal, 2016 Single-channel 112-Gb/s PAM-4 transmission based on low-cost intensity modulation and direct detection (IM/DD) optics is experimentally demonstrated over 1-km standard single-mode fiber.
Chao Yang +6 more
doaj +1 more source
Cascaded Kalman filter for target tracking in automotive radar
The Journal of Engineering, 2019 In automotive anti-collision radar system, the accuracy of velocity is one of the key indicators to measure radar performance. For frequency modulation continuous wave radar with chirp sequence, which is commonly used in automotive radar, there are two ...
Yang Li +4 more
doaj +1 more source
IET Radar, Sonar & Navigation, 2017 The chirp sequence waveform is one of the most commonly used waveforms for automotive frequency‐modulated continuous wave radars. When a chirp sequence waveform is applied, the range–Doppler processing method based on two‐dimensional fast Fourier transform can be used to extract the range and velocity parameters of multiple targets from the beat ...
Yuankai Wang +4 more
openaire +2 more sources
SAR Waveform Diversity Using PN-Sequence and Its Optimization With Genetic Algorithm
IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingWaveform diversity is an important technique to suppress range ambiguities and extend the observation coverage of synthetic aperture radar (SAR) without sacrificing spatial resolution and power consumption.
Raito Suzuki, Akira Hirose, Ryo Natsuaki
doaj +1 more source
Time-Resolved Mechanical Spectroscopy of Soft Materials via Optimally Windowed Chirps
Physical Review X, 2018 The ability to measure the bulk dynamic behavior of soft materials with combined time and frequency resolution is instrumental for improving our fundamental understanding of connections between the microstructural dynamics and the macroscopic mechanical ...
Michela Geri +5 more
doaj +1 more source
Journal of Engineering and Sustainable Development, 2009 A modulation of the device current leads to laser-power modulation and is useful for transmitting information as a sequence of optical pulses .However , modulation of the current also affects the optical frequency which emphasize that carriers influence
Mohammed Adnan Mahde
doaj
IEEE Journal of MicrowavesCooperative radar networks are a promising technology in various areas, such as vehicle-to-infrastructure networks for automotive radar and radar remote sensing with UAVs. The use of widely distributed radar networks enables the detection of targets with
Patrick Fenske +3 more
doaj +1 more source