TSP信号を用いた音響系評価の研究

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Transcription:

1 TSP 98kc068

2 1. 4 2. TSP 2.1 2.2 TSP 2.2.1 ATSP 2.2.2 OATSP 2.3 N 3. 5 5 6 6 7 8 2.3.1 N 8 2.3.2 TSP 9 2.3.3 2.3.4 m 3.1 3.1.1 3.1.2 3.2 3.3 15 18 20 20 20 21 22 24 3.3.1 24 3.3.2 3.4 3.4.1 3.4.2 4. 1 4.1 4.2 4.2.1 4.2.2 4.2.3 4.2.4 27 29 29 30 31 31 36 36 37 38 50

3 5. 2 51 5.1 5.2 5.3 5.4 5.5 5.6 6. 6.1 51 52 60 68 76 85 86 86 6.2 87 6.2.1 87 6.2.2 88 89 89

4 1 1) 2) 15 20s50100V 3) (4) TSP

5 2TSP (1) 2.1 Inpulse Response SN Time Stretched Pulse TSP

6 2.2TSP 2.2.1ATSP ATSP ATSP H( n) = a H( N / 2) 0 H( n) = H exp( jkn * ( N n) = a 0 2 ) 0 n N / 2 1 N / 2 + 1 n < N 1 n H(n)TSP * H(n) n = N / 2 n = N / 2 + 1 n = N / 2 1 H(n) N n n = 0 n = N n = 1 i n = N 1 n = 2 i k TSP TSP H(n)IDFT TSPx(t) ATSP ATSP n a0 H(n) H -1 IDFT H H H 1 1 1 ( n) = a ( N / 2) 0 ( n) = H exp( jkn * ( N n) = a 0 2 ) 0 n N / 2 1 N / 2 + 1 n < N 2 4 N = 4096 k = 8.991 10 ATSP(a) (b) 2-2-1 a b 2-2-1(2) ATSP

7 2.2.2OATSP 2-2-1 TSP f 0 fs/2 (1) k H(N/2) (= ) fs/ H(N/2) k m 2 k N/2) = mπ ( 3 (3) k k 2 = mπ /(N/2) 4 (4) (2) ATSP H( n) = a exp( j4m * H( n) = H ( N n) n 2 0 π / N 2 ) 0 n N / 2 N / 2 + 1 n < N 5 OptimizedATSP(OATSP) IDFT OATSP TSP OATSP =N/2 fs/2 N/2 OATSP H(n) H -1 (n)idft OATSP H -1 (n) H H 1 1 ( n) = a 0 ( n) = 1/ a exp( j4mπn 0 2 * * H ( N n) / N 2 ) N 0 n N / 2 / 2 + 1 n < N 6

8 2-2-2 OATSP N=4096m=1200 2-2-1 2-2-2(5) (6) OATSP 2-2-2 MATLAB

9

10 N 2.3.1 N (5) ATSP (6) N DFT TSP TSP TSP 2 2 L TSP L+1 TSP N DFT TSP IDFT 16 1 48[kHz]N = 2 TSP

11 2.3.2TSP N TSP N TSP N TSP N TSP TSP (5) (6) N 2-3-1 (2) (3) ATSP 8 TSP N TSP N TSP ATSP OATSP 2-3-2 (5) (6) OATSP ATSP OATSP OATSP 0 N 2-3-1 (2) ATSP

12 2-3-2 (5) (6) OATSP TSP OATSP OATSP TSP 2-3-1

13 2-3-2

14

15 2.3.3 TSP 2-3-3 2-3-3 TSP 2.3.1 TSP 100 TSP 110 TSP 91100 2-3-4 2-3-4 2-3-3 TSP 2-3-5 2-3-5 TSP

16 2-3-6 N=4096 m 2N 1 2 E = ( ) δ ( i) δ( i)) /(2N 1) 7 i= 0 ) δ (i) TSP (i) 2-3-6 rot n rot = N 2 m / 8 4096 N 2-3-6 N=4096 512576640704768 89696010241152128014081536 1664179219202048 2-3-6

17

18 2-3-7 N=4096 (8) OATSP TSP TSP TSP (7) N/2 fs/2 TSP TSP N=4096-98[dB] m 1840 2-3-7 N (8) N=512102420484096 819216384 2-3-7

19

20 3 (2)(3) 3.1 3.1.1 A. B.

21 3.1.2 A. B. C.

22 3.2 3-2-1 3-2-1 3-2-2 3-2-1 3-2-2 3-2-3 0

23 3-2-3 3-2-4 3-2-4 a db

24 3.3 3.3.1 3-3-1 3-3-1 ω [rad/s] 0 V & [m/s] F & [N] F & V & F& Z & r = Rr + jx r [Ns/m] V& R V& r X V & 90 r Z & m0 [Ns/m] F & Z & Z & 3-3-2 m0 r R r

25 3-3-2 P a 3-3-2 P a 2 2 F& = Rr V& = Rr [W] Z& + Z& m0 r R X λ d d r r 3-3-3 2 2 f X f Sz r S z 0 & 0 + Z & jωm R << ω m r Z m r X r R r Rr 0 P a R r F& jωm 2 [W] 3-3-3

26 2 2 f = ω R f 2 4π r F & R P a 2 Z & + Z & 4 j 1 ωc m r ( ) m 3-3-4 P a ω 3-3-4

27 3.3.2 3-3-5 3-3-5 Hz 4 F & f 0 f 0 f 0

28 3-3-6 3-3-6 3-3-7 3-3-5 3-3-7 A B C D B 2 3 f 0

29 3.4 3.4.1 (f0) 3-4-1 3-4-2 f0 3-4-1 3-4-2 f0

30 3.4.2 3-4-3 3-4-3

31 4 1 4.1 TSP 4-1-1 TSP 48[kHz]N=24576A=10mN/4 TSP 2 4-1-1TSP

32

33

34

35 BOSE 101MM 4-1-1 4-1-2 4-1-3 4-1-1 BOSE 101MM 11.5[cm] 70~17k[Hz] 6[] 45[W](rms IEC268-5) 150[W](peak) 86[dB] SPL1[W]1[m] 130 2P 232(W)245(H)152(D)[cm] 2.1[kg] 4-1-2 BOSE 101MM 4-1-3

36 4.2 4.2.1 4-2-1 4-2-1

37 4.2.2 4.2.1

38 4.2.3 TSP 4-2-2 30[cm] 1[m] 4-2-2 1[m] 4-2-3 4-2-4 2 4-2-5 3 4-2-6 4

39 4-2-7 4-2-7

40 1 1 4-2-8 4-2-9 4-2-8

41 4-2-9 2 4-2-84-2-9

42 2 123 4-2-10 4-2-10 4-2-10 100[Hz] 200[Hz] 23[dB] 1[kHz] 1[kHz]

43 4-2-11 4-2-12

44 4-2-13 4-2-14

45 4-2-15 4-2-16

46 4-2-17 4-2-18

47 4-2-11 4-2-18 4-2-19 4-2-20 4-2-19

48 4-2-20 4-2-84-2-9 4-2-194-2-20 4-2-194-2-20 4-2-84-2-9

49 3 4-2-21 1[m] 4-2-21 4-2-22 4-2-22 4-2-22

50 4.2.4 13

51 5 5.1 TSP

52 5.2 0 +30 +60-30 -60-90 +90 [] TSP 5-2-1 5-2-2 5-2-1 5-2-2 TSP FFT

53 5-2-3-90 5-2-4-60

54 5-2-5-30 5-2-60

55 5-2-730 5-2-860

56 5-2-990-90 0 0 90

57 5-2-10-90 -60-30 0 5-2-11 0 30 60 90

58 5-2-105-2-11 0-90 +90-90 +90 0-90 +90 BOSE 101MM 130 130-65 65-90 90 5-2-12-30 0 +30 5-2-12 5-2-12 30 1[kHz] 1[kHz]

59 5-2-13 5-2-13 1.5[kHz]

60 5.3 5.2 5.2 0 +30 +60-30 -60-90 +90 TSP *1 5-3-1 5-3-1 TSP *1

61 5-3-2-90 5-3-3-60

62 5-3-4-30 5-3-50

63 5-3-630 5-3-760

64 5-3-890 5.2 5.3 5-3-9

65 5-3-9 0 100[Hz] 200[Hz] 2[dB] 1500[Hz] 1500[Hz]

66 5-3-10 3.4.2 5-3-11

67 5-3-12-30 5-3-12 30 5-3-12

68 5.4 10[cm] TSP 10[cm] 5-4-1 5-4-2 5-4-1 5-4-3 5-4-2

69

70 5-4-4 5-4-5

71 5-4-45-4-5 1[kHz] 2[kHz] 1.3[kHz] 2 [ ] 5-4-6 500[] 48[kHz] 10[ms] [ ] 5-4-7

72 5-4-6 5-4-7 2 [ ] [ ] 5-4-8 5-4-9 135[ ]140[ ]145[ ]

73 5-4-9135[ ] 5-4-10140[ ]

74 5-4-11145[ ] 5-4-95-4-105-4-11 5.2 5-4-12 5-4-12

75 140[ ] 1 0.7 5-4-13145[ ] 0.7 5-4-13 5-2-6

76 5.5 5-5-1 *2 TSP 5-5-2 1[m] 5-5-1 5-5-2 *2 100[]

77 5-5-3 2[kHz] 5-5-4

78 5-5-4 5-5-1 [g] [g] 10 4 3 0.5 4 1. 2. 3. 4. 5-5-5

79 5-5-6 5-5-7 3

80 5-5-8 5-5-5 5-5-8

81 5-5-9 5-5-10

82 5-5-9 5-5-10 1.3[kHz] 5-5-1 5-5-11 5-5-11 5-5-11 1.3[kHz] 5-5-12

83 5-5-12 5-5-12 1.3[kHz] 1.3[kHz] 1.3[kHz] 1.3[kHz] 5-5-13

84 5-5-13 5-5-13

85 5.6 TSP 1[m] 5-6-1 5-6-1 5-6-1

86 6 6.1

87 6.2 BOSE101MM 6.2.1-90+90 0-90+90 BOSE 101MM 130 130 +65-90 +90 30

88 6.2.2 1.3[kHz] 1.3[kHz] 1.3[kHz] 1.3[kHz] db

89 (1), EA92-86(1992-12). (2) pp.94-103, (1989-8). (3) pp.38, (2001-4). (4) pp.158-159, (1995-3).