Results 121 to 130 of about 63,321 (235)

Radar RFI at Goldstone DSS 12 and DSS 16 [PDF]

Radio frequency interference (RFI) from the DSS 14 Goldstone Solar System Radar (GSSR) was investigated at DSS 12 and DSS 16 with the goal of assisting in the choice of the location of future DSN antennas.
Peng, T. K., Slobin, S. D.
core   +1 more source

Low complexity closed‐form covariance matrix and direct constant‐envelope waveforms design for MIMO radar transmit beampattern [PDF]

, 2019
Wenqi Yu, Bingyu Cui
openalex   +1 more source

Theory for computing the size and shape of a region of influence associated with a maneuvering vehicle [PDF]

A general procedure for computing the region of influence of a maneuvering vehicle is described. Basic differential geometric relations, including the use of a general trajectory parameter and the introduction of auxiliary variables in the envelope ...
Barger, R. L.
core   +1 more source

RADAR ENVELOPE VISUALIZATION

, 2018
The Navy and Marine Corps cannot expect to always operate aircraft within permissive environments. Potential employment scenarios include operations against advanced surface-to-air missiles and early warning radars with detection ranges advertised beyond 200 nautical miles. Low-observable aircraft are not a panacea.
openaire   +1 more source

Quantized Constant-Envelope Waveform Design for Massive MIMO DFRC Systems [PDF]

arXiv
Both dual-functional radar-communication (DFRC) and massive multiple-input multiple-output (MIMO) have been recognized as enabling technologies for 6G wireless networks. This paper considers the advanced waveform design for hardware-efficient massive MIMO DFRC systems. Specifically, the transmit waveform is imposed with the quantized constant-envelope (
arxiv  

An ultra‐thin switched state active frequency selective surface absorber with wide bandwidth using semi‐analytical method

IET Microwaves, Antennas & Propagation
Using low‐voltage forward biased PIN diodes, an ultrathin switched states active frequency selective surface based microwave absorber is designed. Using a semi‐analytical method, the NXP#BAP70‐03 PIN diode‐based single polarised unit‐cell of the active ...
Z. A. Pandit Jibran, Kumud R. Jha, Satish K. Sharma, Anuj Shukla   +3 more
doaj   +1 more source

High-Resolution and Real-Time Three-Dimensional Imaging Algorithm With Envelopes of Spheres for UWB Radars [PDF]

, 2008
Shouhei Kidera, Takuya Sakamoto, Toru Sato   +2 more
openalex   +1 more source

Soil Moisture Content Inversion by Coupling AEA and ARMA [PDF]

Radioengineering
This study aimed to explore the inversion method of soil moisture content by using numerical simulation and field detection. The researchers used the early signal amplitude envelope (AEA) method to directly invert soil moisture in the shallow part of the
Y. Feng, J. Nie, G. Xie, H. Lv
doaj  

Simulate Any Radar: Attribute-Controllable Radar Simulation via Waveform Parameter Embedding [PDF]

arXiv
We present SA-Radar (Simulate Any Radar), a radar simulation approach that enables controllable and efficient generation of radar cubes conditioned on customizable radar attributes. Unlike prior generative or physics-based simulators, SA-Radar integrates both paradigms through a waveform-parameterized attribute embedding.
arxiv  

AIMP-Based Power Allocation for Radar Network Tracking Under Countermeasures Environment. [PDF]

Sensors (Basel)
Xing X, Xu L, Nie L, Li X.
europepmc   +1 more source