Properties of the MIMO Radar Ambiguity Function Chun-Yang Chen in addition to P. P. Vaidyan

Properties of the MIMO Radar Ambiguity Function Chun-Yang Chen in addition to P. P. Vaidyan www.phwiki.com

Properties of the MIMO Radar Ambiguity Function Chun-Yang Chen in addition to P. P. Vaidyan

Fesler, Carrie, Freelance Journalist has reference to this Academic Journal, PHwiki organized this Journal Properties of the MIMO Radar Ambiguity Function Chun-Yang Chen in addition to P. P. Vaidyanathan Cali as long as nia Institute of Technology Electrical Engineering/DSP Lab ICASSP 2008 Outline Review of the background Radar ambiguity function in addition to its properties MIMO radar MIMO radar ambiguity function Properties of the MIMO ambiguity function Signal component Energy Symmetry Linear frequency modulation (LFM) Conclusion Chun-Yang Chen, Caltech DSP Lab ICASSP 2008 1 Review: Ambiguity function in addition to MIMO radar

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Radar Ambiguity Function Chun-Yang Chen, Caltech DSP Lab ICASSP 2008 u(t) t: delay n: Doppler Radar Ambiguity Function Chun-Yang Chen, Caltech DSP Lab ICASSP 2008 u(t) Matched filter output t: delay n: Doppler Radar Ambiguity Function Chun-Yang Chen, Caltech DSP Lab ICASSP 2008 u(t) Matched filter output t: delay n: Doppler

Radar Ambiguity Function Chun-Yang Chen, Caltech DSP Lab ICASSP 2008 u(t) Matched filter output Radar ambiguity function t: delay n: Doppler Radar Ambiguity Function Chun-Yang Chen, Caltech DSP Lab ICASSP 2008 u(t) Matched filter output Radar ambiguity function Ambiguity function characterizes the Doppler in addition to range resolution. t: delay n: Doppler Radar Ambiguity Function Chun-Yang Chen, Caltech DSP Lab ICASSP 2008 Multiple targets (tk,nk)

Radar Ambiguity Function Chun-Yang Chen, Caltech DSP Lab ICASSP 2008 Multiple targets (tk,nk) Radar Ambiguity Function Chun-Yang Chen, Caltech DSP Lab ICASSP 2008 Multiple targets (tk,nk) Matched filter output Radar Ambiguity Function Chun-Yang Chen, Caltech DSP Lab ICASSP 2008 Matched filter output t n target 2 (t2,n2) target 1 (t1,n1) Multiple targets (tk,nk)

Radar Ambiguity Function Chun-Yang Chen, Caltech DSP Lab ICASSP 2008 Matched filter output t n target 2 (t2,n2) target 1 (t1,n1) Multiple targets (tk,nk) Ambiguity function characterizes the Doppler in addition to range resolution. Radar Ambiguity Function Chun-Yang Chen, Caltech DSP Lab ICASSP 2008 t n target 2 (t2,n2) target 1 (t1,n1) Ambiguity function Ambiguity function characterizes the Doppler in addition to range resolution. Radar Ambiguity Function Chun-Yang Chen, Caltech DSP Lab ICASSP 2008 t n target 2 (t2,n2) target 1 (t1,n1) Ambiguity function

Properties of Radar Ambiguity Function Signal component Chun-Yang Chen, Caltech DSP Lab ICASSP 2008 t n Properties of Radar Ambiguity Function Signal component Energy Chun-Yang Chen, Caltech DSP Lab ICASSP 2008 t n Properties of Radar Ambiguity Function Signal component Energy Symmetry Chun-Yang Chen, Caltech DSP Lab ICASSP 2008 t n

Properties of Radar Ambiguity Function Signal component Energy Symmetry Linear frequency modulation (LFM) Chun-Yang Chen, Caltech DSP Lab ICASSP 2008 t n Chun-Yang Chen, Caltech DSP Lab ICASSP 2007 student paper contest MIMO Radar SIMO radar (Traditional) w2f(t) w1f(t) w0f(t) Advantages Better spatial resolution [Bliss & Forsythe 03] Flexible transmit beampattern design [Fuhrmann & San Antonio 04] Improved parameter identifiability [Li et al. 07] Ambiguity Function in MIMO Radar Chun-Yang Chen, Caltech DSP Lab Asilomar Conference 2007 u0(t) u1(t) uM-1(t) (t,n,f) TX t:delay n:Doppler f: Spatial freq. dT

Ambiguity Function in MIMO Radar Chun-Yang Chen, Caltech DSP Lab Asilomar Conference 2007 MF MF MF (t,n,f) (t,n,f) TX RX t:delay n:Doppler f: Spatial freq. u0(t) u1(t) uM-1(t) dT dR Ambiguity Function in MIMO Radar Chun-Yang Chen, Caltech DSP Lab Asilomar Conference 2007 MF MF MF (t,n,f) (t,n,f) TX RX t:delay n:Doppler f: Spatial freq. u0(t) u1(t) uM-1(t) dT dR Ambiguity Function in MIMO Radar Chun-Yang Chen, Caltech DSP Lab Asilomar Conference 2007 MF MF MF (t,n,f) (t,n,f) Matched filter output TX RX t:delay n:Doppler f: Spatial freq. u0(t) u1(t) uM-1(t) dT dR

Fesler, Carrie HCI - Hot Compact & Imports Magazine Freelance Journalist www.phwiki.com

Ambiguity Function in MIMO Radar Chun-Yang Chen, Caltech DSP Lab Asilomar Conference 2007 Matched filter output Receiver beam as long as ming t:delay n:Doppler f: Spatial freq. um(t): m-th wave as long as m xm: m-th antenna location n: receiving antenna index Ambiguity Function in MIMO Radar Chun-Yang Chen, Caltech DSP Lab Asilomar Conference 2007 Matched filter output Receiver beam as long as ming t:delay n:Doppler f: Spatial freq. um(t): m-th wave as long as m xm: m-th antenna location n: receiving antenna index Cross ambiguity function Ambiguity Function in MIMO Radar Chun-Yang Chen, Caltech DSP Lab Asilomar Conference 2007 Matched filter output Receiver beam as long as ming [San Antonio et al. 07] t:delay n:Doppler f: Spatial freq. um(t): m-th wave as long as m xm: m-th antenna location n: receiving antenna index MIMO ambiguity function

2 Properties of the MIMO ambiguity function Properties of the signal component Chun-Yang Chen, Caltech DSP Lab ICASSP 2008 Ambiguity function: Signal component: Properties of the signal component Chun-Yang Chen, Caltech DSP Lab ICASSP 2008 Ambiguity function: Signal component: For orthogonal wave as long as ms,

MIMO Radar Chun-Yang Chen, Caltech DSP Lab ICASSP 2008 MF MF MF TX RX u0(t) u1(t) uM-1(t) MIMO Radar Advantages Better spatial resolution [Bliss & Forsythe 03] Flexible transmit beampattern design [Fuhrmann & San Antonio 04] Improved parameter identifiability [Li et al. 07]

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