منابع مشابه
Performance analysis of space-time-adaptive monopulse
The two-dimensional monopulse estimation scheme is extended to spaceand time-adaptive processing (STAP) for arbitrary sum and di2erence beams and arbitrary subarrays in space and time. This includes the case of time samples at the pulse repetition frequency (PRF, slow time STAP) as well as time samples at Nyquist frequency according to the receiving bandwidth (typically samples from range cell ...
متن کاملA Space/Fast-Time Adaptive Monopulse Technique
Mainbeam jamming poses a particularly difficult challenge for conventional monopulse radars. In such cases spatially adaptive processing provides some interference suppression when the target and jammer are not exactly coaligned. However, as the target angle approaches that of the jammer, mitigation performance is increasingly hampered and distortions are introduced into the resulting beam patt...
متن کاملStructured unitary space-time autocoding constellations
We recently showed that arbitrarily reliable communication is possible within a single coherence interval in Rayleigh flat fading as the symbol-duration of the coherence interval and the number of transmit antennas grow simultaneously. This effect, where the space-time signals act as their own channel codes, is called autocoding. For relatively short (e.g., 16-symbol) coherence intervals, a cod...
متن کاملSpace-Time Codes from Structured Lattices
We present constructions of Space-Time (ST) codes based on lattice coset coding. First, we focus on ST code constructions for the short block-length case, i.e., when the block-length is equal to or slightly larger than the number of transmit antennas. We present constructions based on dense lattice packings and nested lattice (Voronoi) shaping. Our codes achieve the optimal diversity-multiplexi...
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ژورنال
عنوان ژورنال: The Journal of Korean Institute of Electromagnetic Engineering and Science
سال: 2017
ISSN: 1226-3133,2288-226X
DOI: 10.5515/kjkiees.2017.28.12.999