I've read the section titled "Range Bias and Rx Channel Gain/Phase Measurement and Compensation" and have attempted the calibration procedure some times, but I sometimes have difficulty knowing when the calibration is "good enough".
The raw values coming from the ti demo visualizer (e.g. compRangeBiasAndRxChanPhase 0.0183261 -0.08447 0.81223 0.18195 -0.87656 -0.07315 0.76135 -0.19485 -0.91895 -0.12097 0.86502 0.27304 -0.88831 -0.10101 0.82993 -0.14072 -0.99005 0.27130 0.82870 -0.17307 -0.89349 0.29126 0.70993 -0.47418 -0.81516) I find difficult to deciper. Especially considering there is some variation in the 10Hz signal. So what I've tried to do is collect for a while, and plot the deviation of the individual numbers, and I aim to use a result with low variance and few outliers. After having a reasonable batch, I take the last value and check to make sure my corner reflector is close to the distance I expect it to be.
Does this make sense? Is there a better way to go about this? Should I average over all the results for the final calibration I use?
One such set of points which I deemed "good" by these metrics were:
compRangeBiasAndRxChanPhase 0.0182595 -0.22565 0.77991 0.32953 -0.83368 -0.20255 0.73120 -0.03583 -0.93802 -0.28079 0.83014 0.42477 -0.82056 -0.25525 0.78967 0.05136 -0.99869 0.11307 0.86639 -0.00333 -0.90677 0.15454 0.75125 -0.31857 -0.88989
compRangeBiasAndRxChanPhase 0.0182903 -0.22928 0.78558 0.33618 -0.83133 -0.20419 0.73480 -0.03204 -0.95120 -0.27606 0.83344 0.43048 -0.83081 -0.25360 0.80441 0.04153 -0.99915 0.11801 0.87000 -0.00861 -0.91125 0.16193 0.75815 -0.31644 -0.89246
compRangeBiasAndRxChanPhase 0.0183009 -0.16769 0.80072 0.27567 -0.85233 -0.15158 0.75296 -0.09741 -0.94135 -0.21536 0.84933 0.37021 -0.85941 -0.19376 0.81546 -0.02713 -0.99963 0.17487 0.86017 -0.08173 -0.90671 0.21838 0.74100 -0.38425 -0.86328
compRangeBiasAndRxChanPhase 0.0183074 -0.17041 0.79541 0.27271 -0.85812 -0.14893 0.75076 -0.09753 -0.94000 -0.20859 0.84811 0.35999 -0.85333 -0.19034 0.81717 -0.02942 -0.99957 0.18179 0.85425 -0.08084 -0.90665 0.21930 0.73535 -0.38956 -0.85892
compRangeBiasAndRxChanPhase 0.0182340 -0.25909 0.76990 0.36459 -0.81555 -0.23816 0.72122 0.00909 -0.94250 -0.30988 0.81442 0.45300 -0.80701 -0.28091 0.78296 0.08395 -0.99646 0.07114 0.87518 0.03970 -0.90369 0.12070 0.76099 -0.27628 -0.90402
compRangeBiasAndRxChanPhase 0.0183153 -0.14285 0.80658 0.24881 -0.86472 -0.12399 0.75781 -0.13028 -0.93521 -0.18494 0.85715 0.33722 -0.87494 -0.16367 0.82681 -0.06775 -0.99771 0.20035 0.85651 -0.09698 -0.91254 0.23535 0.73746 -0.40637 -0.85806
compRangeBiasAndRxChanPhase 0.0183520 -0.14496 0.80167 0.24442 -0.85828 -0.12387 0.75253 -0.13177 -0.93979 -0.19623 0.85797 0.34268 -0.86560 -0.17401 0.82169 -0.05478 -0.99850 0.20123 0.85004 -0.09695 -0.90359 0.23163 0.73608 -0.40381 -0.85233
compRangeBiasAndRxChanPhase 0.0182958 -0.13623 0.80975 0.23138 -0.87082 -0.11853 0.75717 -0.14160 -0.94153 -0.18253 0.86148 0.33279 -0.87033 -0.16144 0.83157 -0.06760 -0.99771 0.21259 0.85028 -0.11325 -0.90436 0.24081 0.73224 -0.41574 -0.84946
compRangeBiasAndRxChanPhase 0.0183066 -0.11111 0.80728 0.21332 -0.87201 -0.09790 0.76025 -0.16138 -0.93652 -0.14886 0.86911 0.29568 -0.88538 -0.13574 0.82782 -0.09930 -0.99506 0.23151 0.84525 -0.13174 -0.90482 0.25488 0.72684 -0.43954 -0.84067
compRangeBiasAndRxChanPhase 0.0183047 -0.15869 0.80264 0.25571 -0.85507 -0.13513 0.75571 -0.11389 -0.94409 -0.19922 0.85825 0.34760 -0.86575 -0.17966 0.82761 -0.04553 -0.99896 0.19565 0.85632 -0.09647 -0.91037 0.22824 0.74091 -0.40323 -0.85608
compRangeBiasAndRxChanPhase 0.0183286 -0.19043 0.80179 0.29413 -0.85767 -0.16461 0.75131 -0.07617 -0.95071 -0.23569 0.84708 0.38794 -0.85004 -0.21024 0.81589 -0.00754 -0.99997 0.15973 0.87357 -0.05469 -0.91611 0.19778 0.74930 -0.36624 -0.88141
compRangeBiasAndRxChanPhase 0.0183386 -0.12375 0.81116 0.22067 -0.86441 -0.10458 0.76056 -0.15079 -0.94080 -0.15970 0.86795 0.30713 -0.88477 -0.14273 0.82745 -0.09250 -0.99573 0.23276 0.84540 -0.12952 -0.90625 0.26288 0.72971 -0.43494 -0.84210
compRangeBiasAndRxChanPhase 0.0183928 -0.07275 0.81354 0.16754 -0.88351 -0.05698 0.76260 -0.21313 -0.91940 -0.11868 0.86847 0.26529 -0.89166 -0.10339 0.82999 -0.13498 -0.99084 0.27435 0.82483 -0.17459 -0.89011 0.29150 0.70911 -0.47876 -0.81503
compRangeBiasAndRxChanPhase 0.0183660 -0.13498 0.81363 0.23459 -0.87225 -0.11511 0.76166 -0.14456 -0.94727 -0.17642 0.86380 0.32281 -0.87772 -0.15555 0.83258 -0.07755 -0.99698 0.21896 0.84915 -0.11938 -0.91174 0.24731 0.73099 -0.42343 -0.84476
compRangeBiasAndRxChanPhase 0.0183332 -0.11929 0.80856 0.21793 -0.87442 -0.10165 0.76102 -0.15814 -0.93335 -0.15384 0.86380 0.30627 -0.88043 -0.13455 0.83188 -0.10229 -0.99475 0.23770 0.84531 -0.14325 -0.90070 0.26572 0.72729 -0.44669 -0.83795
compRangeBiasAndRxChanPhase 0.0183216 -0.14108 0.80026 0.23734 -0.86185 -0.12460 0.75565 -0.13840 -0.93912 -0.18835 0.85333 0.33682 -0.86517 -0.16971 0.82019 -0.05032 -0.99872 0.20422 0.85147 -0.10046 -0.90176 0.23578 0.73523 -0.41220 -0.85452
compRangeBiasAndRxChanPhase 0.0183100 -0.16422 0.80170 0.25739 -0.86377 -0.13977 0.75369 -0.10944 -0.93982 -0.20267 0.85263 0.35663 -0.85919 -0.17715 0.82068 -0.04517 -0.99899 0.18924 0.85834 -0.08777 -0.90915 0.22421 0.73572 -0.39862 -0.85675
compRangeBiasAndRxChanPhase 0.0183697 -0.16360 0.79568 0.25797 -0.85629 -0.14340 0.74908 -0.10861 -0.94070 -0.20401 0.84689 0.34943 -0.85806 -0.18539 0.81668 -0.04608 -0.99893 0.18832 0.85434 -0.08655 -0.90805 0.22153 0.73492 -0.38730 -0.85693
compRangeBiasAndRxChanPhase 0.0183010 -0.14639 0.80185 0.24896 -0.85553 -0.12808 0.75452 -0.12717 -0.93744 -0.19025 0.84924 0.33560 -0.86035 -0.17075 0.81921 -0.05692 -0.99838 0.20334 0.85211 -0.10071 -0.90326 0.23676 0.73303 -0.40619 -0.84689
compRangeBiasAndRxChanPhase 0.0183664 -0.12805 0.80576 0.22934 -0.86209 -0.11386 0.75378 -0.14716 -0.93283 -0.17526 0.85947 0.32809 -0.87473 -0.15915 0.82370 -0.07443 -0.99722 0.21201 0.84610 -0.11499 -0.90424 0.24066 0.73148 -0.41702 -0.84613
compRangeBiasAndRxChanPhase 0.0183290 -0.11249 0.80945 0.20886 -0.86868 -0.09262 0.76163 -0.16812 -0.92981 -0.14801 0.86301 0.30017 -0.88123 -0.12817 0.83176 -0.10837 -0.99411 0.23456 0.84720 -0.13666 -0.90405 0.26291 0.72842 -0.43921 -0.84213
compRangeBiasAndRxChanPhase 0.0184064 -0.10443 0.81293 0.20114 -0.88058 -0.08929 0.76270 -0.17703 -0.93573 -0.14142 0.86737 0.29102 -0.88577 -0.12250 0.83261 -0.11450 -0.99341 0.24823 0.84018 -0.14850 -0.90521 0.27304 0.72198 -0.45514 -0.83127
compRangeBiasAndRxChanPhase 0.0183010 -0.11862 0.81256 0.21588 -0.87793 -0.10498 0.76166 -0.16110 -0.94199 -0.15671 0.86652 0.30759 -0.88300 -0.13855 0.83298 -0.09882 -0.99512 0.23538 0.85080 -0.13306 -0.90598 0.26044 0.72458 -0.44650 -0.84088
compRangeBiasAndRxChanPhase 0.0184312 -0.12994 0.80560 0.23450 -0.87234 -0.11584 0.75937 -0.14270 -0.93741 -0.18036 0.85663 0.33307 -0.87732 -0.16412 0.82404 -0.06836 -0.99765 0.21243 0.85468 -0.11057 -0.91357 0.23950 0.73224 -0.41473 -0.85464
compRangeBiasAndRxChanPhase 0.0183054 -0.17404 0.79514 0.27298 -0.84888 -0.15643 0.74518 -0.08688 -0.93747 -0.21725 0.84406 0.36264 -0.85501 -0.19534 0.81720 -0.02927 -0.99957 0.17657 0.85254 -0.07697 -0.90512 0.20871 0.73703 -0.37866 -0.86731
compRangeBiasAndRxChanPhase 0.0182283 -0.15488 0.80151 0.25113 -0.85873 -0.13477 0.75146 -0.11499 -0.93982 -0.19479 0.85599 0.34766 -0.85995 -0.17810 0.81949 -0.05383 -0.99854 0.19525 0.85394 -0.09833 -0.90347 0.22357 0.73160 -0.39850 -0.85434
compRangeBiasAndRxChanPhase 0.0182748 -0.10068 0.81128 0.19513 -0.87988 -0.09058 0.75745 -0.17795 -0.92786 -0.14630 0.86060 0.29517 -0.88406 -0.12949 0.82581 -0.10574 -0.99438 0.24759 0.84058 -0.14661 -0.89633 0.27118 0.72000 -0.44910 -0.83594
compRangeBiasAndRxChanPhase 0.0183261 -0.08447 0.81223 0.18195 -0.87656 -0.07315 0.76135 -0.19485 -0.91895 -0.12097 0.86502 0.27304 -0.88831 -0.10101 0.82993 -0.14072 -0.99005 0.27130 0.82870 -0.17307 -0.89349 0.29126 0.70993 -0.47418 -0.81516
