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Original question:

IWR6843AOPEVM: Angle resolution for IWR6843AOP

IWR6843AOPEVM: angular resolution for static targets using Capon

ck
Prodigy 140 points
Part Number: IWR6843AOPEVM

Following up this post

e2e.ti.com/.../946963

for range angle estimation, given two static targets of similar rcs at the same range bin, I would expect Capon to provide much better angular resolution than Bartlett, what is the reason Capon could not improve angular resolution? If Capon does not improve angular resolution, what is the benefit of using Capon?

what about subspace DOA estimator, will e.g MUSIC improve the angular resolution?

  • 0
    TI__Mastermind 40355 points

    HI, Chunmei:

    As I mentioned in the other thread, Capon will not improve the angle resolution of two static targets.  But it still lower the sidelobe and narrow the beam in angle spectrum.   In our people counting demo, we skip Doppler FFT and apply Capon to calculate range-angle heatmap.  We have seen better angle resolution when the two targets have independent movement. 

    Regarding the subspace DOA estimator, you can reference to the following e2e thread:

    e2e.ti.com/.../773122

    Best,

    Zigang