Results 1 to 10 of about 16,631 (258)

On a Closer Look of a Doppler Tolerant Noise Radar Waveform in Surveillance Applications

Sensors
The prevalence of Low Probability of Interception (LPI) and Low Probability of Exploitation (LPE) radars in contemporary Electronic Warfare (EW) presents an ongoing challenge to defense mechanisms, compelling constant advances in protective strategies ...
Maximiliano Barbosa, Leandro Pralon, Antonio L. L. Ramos, José Antonio Apolinário   +3 more
doaj   +1 more source

An improved hydrometeor detection method for millimeter-wavelength cloud radar [PDF]

Atmospheric Chemistry and Physics, 2017
A modified method with a new noise reduction scheme that can reduce the noise distribution to a narrow range is proposed to distinguish clouds and other hydrometeors from noise and recognize more features with weak signal in cloud radar observations ...
J. Ge, Z. Zhu, C. Zheng, H. Xie, T. Zhou, J. Huang, Q. Fu, Q. Fu   +7 more
doaj   +1 more source

Radar matched filtering using the fractional fourier transform [PDF]

, 2010
-A matched filter is the optimal linear filter for maximizing the signal to noise ratio (SNR) in the presence of additive noise. Matched filters are commonly used in radar systems where the transmitted signal is known and may be used as a replica to be ...
Clemente, Carmine, S.A. Elgamel, C. Clemente, Elgamel, Sherif A.E.H., Soraghan, J.J., J.J. Soraghan   +5 more
core   +1 more source

Coherent Integration Loss Due to Nonstationary Phase Noise in High-Resolution Millimeter-Wave Radars

Remote Sensing, 2021
Phase noise refers to the instability of an oscillator, which is the cause of instantaneous phase and frequency deviations in the carrier wave. This unavoidable instability adversely affects the performance of range–velocity radar systems, including ...
Chagai Levy, Monika Pinchas, Yosef Pinhasi   +2 more
doaj   +1 more source

W-band noise radar in short range applications [PDF]

, 2008
Noise Radar Technology (NRT) uses noise waveforms (continuous or pulsed) as a radar signal and correlation processing of the returns for their optimal reception.
G. Galati, M. Ferri, Ferri, M, Galati, G, GALATI, GASPARE, G. Pavan, Pavan, G, PAVAN, GABRIELE   +7 more
core   +1 more source

Inverse Synthetic Aperture Radar Imaging of Space Targets Using Wideband Pseudo-Noise Signals with Low Peak-to-Average Power Ratio

Remote Sensing
With the number of new satellites increasing dramatically, comprehensive space surveillance is becoming increasingly important. Therefore, high-resolution inverse synthetic aperture radar (ISAR) imaging of satellites can provide an in-situ assessment of ...
Simon Anger, Matthias Jirousek, Stephan Dill, Markus Peichl   +3 more
doaj   +1 more source

Advanced range-Doppler processing in noise radar

, 2022
S.464-467A novel approach is proposed to overcome the maxi-mum range limitations of noise radar technology while enhancing the computational efficiency of the correlation processing of batches of samples.
Wasserzier, C., Galati, G.
core   +1 more source

Imageless Contraband Detection Using a Millimeter-Wave Dynamic Antenna Array via Spatial Fourier Domain Sampling

IEEE Access
We demonstrate an imageless method of concealed contraband detection using a real-time 75 GHz rotationally dynamic antenna array. The array measures information in the two-dimensional Fourier domain and captures a set of samples that is sufficient for ...
Daniel Chen, Anton Schlegel, Jeffrey A. Nanzer   +2 more
doaj   +1 more source

Delay-Modulated RF Tag System Concept Using Ultrawideband Noise Radar Waveforms

International Journal of Distributed Sensor Networks, 2011
Radio frequency (RF) tags have been widely used in inventory tracking, environmental monitoring, battlefield situational awareness, and combat identification due to their low cost, small size, and wireless functionality.
Qihe Pan, Ram M. Narayanan
doaj   +1 more source

94 GHz Monolithic Transmitter for Weather Radar Application [PDF]

, 2011
This thesis was written for concluding my studies at the University of Padua. The main topic is the design of a monolithic transmitter in SiGe bipolar technology, for weather radar application at an operating frequency around 94GHz.
Puliero , Claudio
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