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This paper proposes a nested frequency diverse array (FDA) design scheme, which jointly utilizes FDA angle-range-dependent beampattern and nested array increased degrees-of-freedom (DOFs). In this case, the commonly used MUSIC algorithm fail to estimate multiple sources because of the source correlation. Furthermore, a compressive sensing-based range and(More)
For frequency diverse array (FDA) pattern synthesis, smaller aperture or fewer elements are expected to obtain the desired beampattern performance. This paper propose a new FDA beampattern synthesis approach by &#x2113;<sub>1</sub>-norm minimization and convex optimization. Given array aperture, a virtual uniform linear FDA array with much smaller element(More)
In this paper, we propose a target localization method with frequency diverse array (FDA) multiple-input and multiple-output (MIMO) radar in sparse signal reconstruction perspective. We jointly use sparsity reconstruction method and FDA transmitting array. The essence of the proposed technique is to formulate the problem of angle and range estimation using(More)
This paper proposes a receiving nested frequency diverse array (FDA) design scheme. The essence of the proposed technique is to construct a new array structure by systematically nesting two or more uniform linear FDA. Using second-order statistics of the received data, it is capable of providing a significant increasing degrees-of-freedom. The frequency(More)
Frequency Diverse Array (FDA) can provide range-angle-dependent beam which is different from the angle-only directional beam of conventional phased-array and bring potential applications. Small frequency offset between adjacent elements is the essential difference compared with conventional phased-array. In this paper, we propose two transmit beampattern(More)
  • Chih - Wei Lin, Duen - Ren Liu, Hui Chen
  • 2013
Effective knowledge support relies on providing operation-relevant knowledge to workers promptly and accurately. A knowledge flow represents an individual’s or a group’s knowledge-needs and referencing behavior of codified knowledge during operation performance. The flow has been utilized to facilitate organizational knowledge support by illustrating(More)
Although phased-array beamforming has received much attention, it cannot effectively suppress the interferences that have the same direction angle but different ranges of the targets. More seriously, the targets may be submerged in the strong interferences and can not be identified. In this letter, we propose a range-dependent interference suppression via(More)
A direction-of-arrival (DOA) estimator based on sparse recovery, where the dictionary entries are formed by discretizing the angle space and correspondingly sampling the received signal. Furthermore, to reduce hardware realization complexity, we use the level-triggered sampling (LTS) to sample the signal at different sensors, which typically samples below(More)