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Full Phased MIMO Radar with Colocated Antennas

机译:具有共置天线的全相MIMO雷达

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摘要

A Phased Multi-Input Multi-Output (PMIMO) radar employs a transmit array of antennas that are divided into overlapping subarrays with same number of elements in order to exploit the main advantage of a phased array (coherent gain) and that of MIMO (waveform diversity). This paper proposes Full Phased MIMO (FPMIMO) approach in which both transmit and receive arrays are divided into overlapping subarrays with same number of elements. In this structure various waveform combinations can be adopted simultaneously on both transmit and receive sides, including coherent waveforms, non-coherent subarray waveforms and non-coherent waveforms in order to increase coherent gain, waveform diversity as well as radar system flexibility to adapt to given requirements at any time. The increase in coherent gain and waveform diversity makes radar performance more robust against noises and interferences for the desired target. Radar performance in terms of transmit-receive gain, SINR (Signal-to-Interference-plus-Noise-Power Ratio), and maximum range has been formulated and its effectiveness has been compared to Phased Array (PA), MIMO, and PMIMO radars. FPMIMO radar promises flexibility in adapting itself to condition of the targets as exemplified by the design of bird radar with its mission requirements using the FPMIMO approach. The impact of the use of cos(θ)-type elements is also presented.
机译:相控多输入多输出(PMIMO)雷达采用天线的发射阵列,将其分成具有相同数量元素的重叠子阵列,以利用相控阵(相干增益)和MIMO(波形)的主要优势多样性)。本文提出了一种全相位MIMO(FPMIMO)方法,该方法将发送和接收阵列都划分为具有相同数量元素的重叠子阵列。在这种结构中,可以在发射和接收侧同时采用各种波形组合,包括相干波形,非相干子阵列波形和非相干波形,以增加相干增益,波形分集以及雷达系统的灵活性,以适应给定的要求。随时要求。相干增益和波形分集的增加使雷达性能更强大,可抵御所需目标的噪声和干扰。在发射-接收增益,SINR(信噪比-噪声功率比)和最大范围方面,雷达性能已经制定,并且其有效性已与相控阵(PA),MIMO和PMIMO雷达进行了比较。 FPMIMO雷达有望灵活地适应目标条件,这是使用FPMIMO方法设计的鸟雷达及其任务要求所体现的。还介绍了使用cos(θ)型元素的影响。

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