Projekt SBDist. Evaluation of Ranging Methods for a Reliable Short Range Radio. Jacob Kochems. Lehrstuhl für Funkkommunikation und Navigation

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Dieter Adler
vor 5 Jahren
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1 Projekt SBDist Evaluation of Ranging Methods for a Reliable Short Range Radio

2 Projekt SBDist Sichere und latenzarme Breitbandübertragung über kurze Distanzen 2

3 Projekt Partner 3

4 Anwendungsfälle 4

5 SBDist System Architektur 5

6 OFDM-Radar [1] C. Sturm, T. Zwick, and W. Wiesbeck, Performance verification of symbol-based OFDM radar processing, 21 IEEE Radar, 21. [2] K. Braun, OFDM radar algorithms in mobile communication networks, Karlsruher Institut für Technologie (KIT), Diss., 214,

7 OFDM-Radar [1] C. Sturm, T. Zwick, and W. Wiesbeck, Performance verification of symbol-based OFDM radar processing, 21 IEEE Radar, 21. [2] K. Braun, OFDM radar algorithms in mobile communication networks, Karlsruher Institut für Technologie (KIT), Diss., 214, 214. Tx Nachricht Mod. IFFT Add CP DAC X Position Radar Imaging LO Rx Nachricht Demod. FFT Rem CP ADC X 7

8 OFDM-Radar [1] C. Sturm, T. Zwick, and W. Wiesbeck, Performance verification of symbol-based OFDM radar processing, 21 IEEE Radar, 21. [2] K. Braun, OFDM radar algorithms in mobile communication networks, Karlsruher Institut für Technologie (KIT), Diss., 214, 214. r t = H h=1 b h s t τ h e jω D,ht e jφ h + w(t) r t = b s t τ e jω D,t e jφ + w(t) 8

9 OFDM-Radar [1] C. Sturm, T. Zwick, and W. Wiesbeck, Performance verification of symbol-based OFDM radar processing, 21 IEEE Radar, 21. [2] K. Braun, OFDM radar algorithms in mobile communication networks, Karlsruher Institut für Technologie (KIT), Diss., 214, 214. r t l = b s t τ l e jω D,t e jφ + w(t) R k l = b S k l e j ω + ωk τ e jω D,Tl e jφ + W k l R k l = b S k l e j ωτ k e jω D,Tl e jφ + W k l 9

10 OFDM-Radar [1] C. Sturm, T. Zwick, and W. Wiesbeck, Performance verification of symbol-based OFDM radar processing, 21 IEEE Radar, 21. [2] K. Braun, OFDM radar algorithms in mobile communication networks, Karlsruher Institut für Technologie (KIT), Diss., 214, 214. R k l = b S k l e j ωτ k e jω D,Tl e jφ + W k l F k l = R k l S k l = b e j ωτ k e jω D,Tl e jφ + W k l S k l F k l = R k l S k l = b e j ωτ k e jω D,Tl e jφ + W k l 1

11 OFDM-Radar [1] C. Sturm, T. Zwick, and W. Wiesbeck, Performance verification of symbol-based OFDM radar processing, 21 IEEE Radar, 21. [2] K. Braun, OFDM radar algorithms in mobile communication networks, Karlsruher Institut für Technologie (KIT), Diss., 214, 214. F k F k M 1 F = a, a,m 1 a N 1, a N 1,M 1 11

12 OFDM-Radar [1] C. Sturm, T. Zwick, and W. Wiesbeck, Performance verification of symbol-based OFDM radar processing, 21 IEEE Radar, 21. [2] K. Braun, OFDM radar algorithms in mobile communication networks, Karlsruher Institut für Technologie (KIT), Diss., 214, 214. F k F k M 1 F = a, a,m 1 a N 1, a N 1,M 1 FFT F D = d, d,m 1 d N 1, d N 1,M 1 Doppler Spektrum 12

13 OFDM-Radar [1] C. Sturm, T. Zwick, and W. Wiesbeck, Performance verification of symbol-based OFDM radar processing, 21 IEEE Radar, 21. [2] K. Braun, OFDM radar algorithms in mobile communication networks, Karlsruher Institut für Technologie (KIT), Diss., 214, 214. F k F k M 1 F = a, a,m 1 a N 1, a N 1,M 1 FFT F D = d, d,m 1 d N 1, d N 1,M 1 Doppler Spektrum IFFT F D,R = D, D,M 1 D N 1, D N 1,M 1 Doppler/Range Spektrum 13

14 Radar Image (Simuliert) Per F (n, m) = 1 NM F D,R(n, m) 2 = 1 F F NM 14

15 Erster Versuch mit GNU Radio direkte Kopplung 15

16 Radar / Ranging Module PulsOn P44 (TimeDomain) Bandbreite: 1.4 GHz Spektrum: GHz Genauigkeit: ~ 2 cm 16

17 Multiklassen Labels (Distanz) 17

18 Multiklassen Labels (Raster) 18

19 Auswertungsmethode 19

20 Wahrheitsmatrix (Outdoor) Validierung Test tatsächliche Klasse Trefferquote geschätzte Klasse

21 Wahrheitsmatrix (Indoor) Validierung Test tatsächliche Klasse Trefferquote geschätzte Klasse

22 Performance Übersicht Trefferquote Scenario Validierung Test Outdoor Indoor Klassentyp Distanz Raster

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