Results

Set the scanner for 90 degree scan, 2 seconds per pass and 13 samples per pass. 

Little Monster Scanner V1.0
Waiting 10s for alignment of scanner
R Scan:
L Scan: .....*.**.**.
R Scan:.......*.**..
L Scan: ...*.*.**.**.
R Scan:.......*.**..
L Scan: ...*.*.**.**.
R Scan:.......*.**..
L Scan: .....****.**.
R Scan:.......*.**..
L Scan: ....*****.**.
R Scan:.......*.**..
L Scan: ...*.****.**.
R Scan:.......*.**..
L Scan: ....*****.**.
R Scan:.......*.**..
L Scan: ...*.****.**.
R Scan:.......*.**..
L Scan: ...*.****.**.
R Scan:.......*.**..
L Scan: ....*****.**.
R Scan:.......*.**..
L Scan: ....*****.**.
R Scan:.......*.**..
L Scan: ....*****.**.
R Scan:.......*.**..
L Scan: ........**.*.
R Scan:.......*..**.
L Scan: .....**.**.*.
R Scan:.......*..**.
L Scan: ....*****..*.
R Scan:.......*..*..
L Scan: ....*****..*.
R Scan:.......*..*..
L Scan: ....*****..*.
R Scan:.......*..*..
L Scan: ....*****..*.
R Scan:.......*.**..
L Scan: ....*****..*.
R Scan:.......*..*..
L Scan: ....*****..*.
R Scan:.......*..*..

The stars (*) are me sitting about 0.8 m away to the right of centre of the scanner. There is a distinct lag in the data but what is remarkable is how regular the scan pattern is.

Here I am 3 m away from the scanner:

L Scan: .............
R Scan: .............
L Scan: ..***.*...... Me
R Scan: ..*...**..*** Me and dog
L Scan: .*.*.*....*.. Me and dog
R Scan: ..**...*..*.* Me and dog
L Scan: ...*.*.*.**.. Me and dog
R Scan: ..**...*..*** Me and dog
L Scan: .*****...*... Me and dog
R Scan: ..**.***..*** Me and dog
L Scan: .*****...**.. Me and dog
R Scan: ..**..*...... Me
L Scan: .*****....... Me
R Scan: ..**..*...... Me
L Scan: .*****....... Me
R Scan: ..**.***..*** Me and dog
L Scan: .*****...**.. Me and dog
R Scan: ..**.***..*** Me and dog
L Scan: .*****...**.. Me and dog
R Scan: ..**.***..... Me
L Scan: **.****...... Me
R Scan: ..**.***..... Me
L Scan: **.****...... Me
R Scan: ..**.***..... Me
L Scan: .****.*...... Me
R Scan: ..**.***..*** Me and dog
L Scan: .*****...*... Me and dog
R Scan: ..**..*...... Me
L Scan: .*****....... Me
R Scan: ..**......... Me
L Scan: .............
R Scan: .............

On the right hand side (the last four samples) is the response from my dog moving in and out of the scene! So a pretty good result.

Improvements

As I present a response of about 6 samples at 3 m (~40 degrees), clearly the scan is too wide (i.e. too fast?). I should be presenting about 3 samples at this distance.

Second Pass

Made three modifications:

• Increased the scan to +/-60 degrees (19 samples)
• Reduced the speed to 3.75 RPM (6 seconds per span pass)
• Offset the results 1 sample

  Little Monster Scanner V1.0
  Waiting 10s for alignment of scanner
  >> 
  << ..........**.......
  >> ..........*........
  << ........*.**.......
  >> ..........*........
  << ........*.**.......
  >> ..........*........
  << ..........**.......
  >> ..........*........
  << ..........**.......
  >> ..........*.*......
  << ..........**.......
  >> ..........*........
  << ..........**.......
  >> ..........*........
  << ..........**.......
  >> ..........*........
  << ..........**.......
  >> ..........*........
  << ..........**.......
  >> ..........*........
  << ..........**.......
  >> ..........*........
  << ..........**.......
  >> ..........*........
  << ..........**.......
  >> .........**........
  << ..........**.......
  >> ..........*........
  << ..........**.......
  >> .........**........
  << ..........**.......
  >> .........**........
  << ..........**.......
  >> ..........*........
  << ..........**.......
  

This my partner sitting in a chair about 3 m away. No signal if she is not in the chair. Well that seems to work fine.

AlanX