Mean System Distance

[narahahn]

The average value of system distance is computed incorrectly. We already discussed this error before in our meeting. Please correct it in average_fwai

https://github.com/david1412/Time-varying--MIMO/blob/217d06d160655bff32c991344a23d17d5d1a0a0c/utility.py#L383-L389

In Avg_System_distance_MISO.py you give np.linspace(90, 270, num=K) into average_fwai, which I don't understand.

https://github.com/david1412/Time-varying--MIMO/blob/217d06d160655bff32c991344a23d17d5d1a0a0c/Avg_System_distance_MISO.py#L105-L108

[narahahn]

When I run your code Avg_System_distance_MIMO.py, I get the following figures.

They do not seem to be right, because the system distance is supposed to decrease for slower motions.

[david1412]

1.I will correct the plots . 2.In Avg_System_distance_MISO.py you give np.linspace(90, 270, num=K) into average_fwai, which I don't understand. ( i will check and revert in a moment) 3The average value of system distance is computed incorrectly. We already discussed this error before in our meeting. Please correct it in average_fwai ,# yes,we discussed in the previous meeting

as far i understood from the meeting. i need to write code as

np.mean(D,axis=-1) pl.plot(np.mean(D,axis=-1))

if am wrong in understanding , please send me the procedure again. Thankyou

[david1412]

MIMO average System distance are modified ( i used mics)

in line 109,114,119,124, 20*log 10 is replaced in db . I got this plots ,please find below for mic1 and mic2

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MISO plot ( in line 107,112,117,122, 20*log 10 is replaced in db )

[david1412]

I have a question : Are the results fine in system distance MISO and MIMO .. I got this plots ..

![sys mic1](https://user-images.githubuser

content.com/30881405/34636809-792a0a90-f2a9-11e7-95d8-39a09106f0cc.png)

[narahahn]

Great. The impulse responses seem OK.

But the system distance still looks strange. Are you sure that the horizontal axes are the angular speed and the vertical axes are in decibels?

[david1412]

2 loud speakers used in the code ..( i got 8 individual interpolation IR) and (4 sysstem distance Mic1 and mic2)

c.f with your paper( it seems better than earlier results )

please find the plots below.

It looks strange ,i modified some code and i got this results. The horizontal and vertical are in angular speed and decibles respectively.

[david1412]

Results of MIMO and MISO ( average system distance )

[david1412]

first 2 plots from MIMO

last plot is from MISO , i think the system distance is decreased for slower motions . If the plots are good, i will update the code as per your suggestion.

[david1412]

MIMO plots seem to be strange, I modified the code and I got the plots below.

[david1412]

MIMO system distance plots , omega=2radians/sec , line 203 is modified Phi[1, :] = np.roll(Phi[0,:], int(K/2))

[david1412]

MISO system distance ,omega=2 radians/second. I the impulse was flipped. I adjusted it

[david1412]