Title :
Ambiguity function analysis for the Hybrid MIMO Phased-array Radar
Author :
Fuhrmann, Daniel R. ; Browning, J. Paul ; Rangaswamy, Muralidhar
Author_Institution :
Dept. of Electr. & Comput. Eng., Michigan Technol. Univ., Houghton, MI
Abstract :
The hybrid MIMO phased array radar, or HMPAR, is a notional concept for a multisensor radar architecture that combines elements of traditional phased-array radar with the emerging technology of multiple-input multiple output (MIMO) radar. A HMPAR comprises a large number, MP, of T/R elements, organized into M subarrays of P elements each. Within each subarray, passive element-level phase shifting is used to steer transmit and receive beams in some desired fashion. Each of the M subarrays are in turn driven by independently amplified phase-coded signals. This paper derives a version of the radar ambiguity function that is appropriate for this radar architecture. The ambiguity function is a function of time delay, Doppler frequency shift, and two or more spatial variables. An illustrative example for a particular MIMO signal set is given.
Keywords :
Doppler shift; MIMO communication; phased array radar; Doppler frequency shift; ambiguity function analysis; amplified phase-coded signals; hybrid MIMO phased-array radar; multiple-input multiple output radar; multisensor radar architecture; passive element-level phase shifting; time delay; Delay effects; Doppler radar; Force sensors; Frequency; Laboratories; MIMO; Phased arrays; Radar signal processing; Radar tracking; Sensor arrays;
Conference_Titel :
Radar Conference, 2009 IEEE
Conference_Location :
Pasadena, CA
Print_ISBN :
978-1-4244-2870-0
Electronic_ISBN :
1097-5659
DOI :
10.1109/RADAR.2009.4977127