電子航法研究所研究発表会（第15回平成27年６月）

㸯㸯㸬ගࣇ࢓࢖ࣂ᥋⥆ᆺ࣑ࣜἼ࣮ࣞࢲ࡟ࡼࡿ␗≀᥈▱ᢏ⾡
┘ど㏻ಙ㡿ᇦ ͤ஧ࢵ᳃ಇ୍㸪᳃ᒸ࿴⾜㸪ἙᮧᬡᏊ㸪ᒸ⏣ᅜ㞝㸪⡿ᮏᡂே
1ࡣࡌࡵ࡟⯟✵ᶵ➼࡟ᦆᐖࢆ୚࠼㸪༴㝤࡞஦ᨾ➼ࢆᘬࡁ㉳ࡇࡍྍ⬟ᛶࡢ࠶ࡿ✵ ⁥㉮㊰㠃ୖࡢ␗≀ࢆ⮬ືⓗ࡟᥈▱ࡍࡿࢩࢫࢸ࣒ࡢ㔜せᛶࡀቑࡋ࡚࠸ࡿ[1]㸪[2]ࠋࡇࢀࡣ㸪⁥㉮㊰ࡢ฼⏝ຠ⋡ᨵၿࡢࡓࡵ㸪ⴠୗ≀࠾ࡼࡧࣂ࣮ࢻࢫࢺࣛ࢖ࢡⓎ⏕᫬➼࡟࠾ࡅࡿ␗≀Ᏻ඲Ⅼ᳨ࡢ⁥㉮㊰㛢㙐᫬㛫ࡀ↓ど࡛ࡁ࡞࠸ࡓࡵ࡛࠶ࡿࠋࡇࢀࡲ࡛㸪㟁Ꮚ⯟ἲ◊✲ᡤ࡛ࡣ㸪ኳೃ➼ࡢᙳ㡪ࢆཷࡅ࡟ࡃࡃ㸪ᑠᆺ࠿ࡘ㧗ศゎ⬟≉ᛶࢆᐇ⌧࡛ࡁࡿ࣑ࣜἼ࣮ࣞࢲᢏ⾡࠾ࡼࡧ Radio-over-fiber㸦RoF㸧ᢏ⾡ࢆ⤌ࡳྜࢃࡏࡓ㸪ගࣇ࢓࢖ࣂ᥋⥆ᆺ࣑ࣜἼ࣮ࣞࢲࢩࢫࢸ࣒ࡢ◊✲ࢆ⾜࠸㸪ࡑࡢᐇ⌧ྍ⬟ᛶࢆ✵ 㠃࡟࠾ࡅࡿᐇドᐇ㦂࡛᫂ࡽ࠿࡟ࡋ
࡚࠸ࡿ[3]ࠋ ᮏ✏࡛ࡣ㸪ගࣇ࢓࢖ࣂ᥋⥆ᆺ࣑ࣜἼ࣮ࣞࢲ
࡟ࡘ࠸࡚㸪 ᐃホ౯⤖ᯝ࡟ᇶ࡙ࡁ✵ 㠃ᛂ⏝࡟㐺ࡋࡓࢩࢫࢸ࣒ᵓᡂἲࢆ᫂ࡽ࠿࡟ࡋࡓୖ࡛㸪௝ྎ✵ ࡟࠾࠸࡚ᐇ᪋ࡋࡓ᥈▱ヨ㦂ࡢᴫせࢆ㏙࡭ࡿࠋࡲࡎ㸪ගࣇ࢓࢖ࣂ᥋⥆ᆺศᩓ࣮ࣞࢲ
ࢩࢫࢸ࣒ࡢᴫせࢆ㏙࡭ࡿࠋࡉࡽ࡟㸪✵ 㠃࡟࠾ࡅࡿ࣐࢖ࢡࣟἼ࠾ࡼࡧ࣑ࣜἼ࡟࠾ࡅࡿ RoF
ఏ㏦≉ᛶホ౯ヨ㦂࡟ࡘ࠸࡚㆟ㄽࢆ⾜࠸㸪RoFᢏ⾡ࢆ⏝࠸ࡓ࣑ࣜἼ࣮ࣞࢲಙྕఏ㏦࡟㐺ࡋࡓගኚㄪ᪉ᘧࢆ♧ࡍࠋḟ࡟㸪ヨసࡋࡓヨ㦂⏝ගࣇ࢓࢖ࣂ᥋⥆ᆺ 96 GHz ᖏ࣑ࣜἼ࣮ࣞࢲࢩࢫ
ࢸ࣒ࡢᵓᡂἲ࡟ࡘ࠸࡚ㅖඖ࠾ࡼࡧᴫせࢆ㏙࡭ࡿࠋ᭱ᚋ࡟㸪௝ྎ✵ ࡟࠾࠸࡚ᐇ᪋ࡋࡓホ౯ヨ㦂࡟ࡘ࠸࡚㸪✵ 㠃␗≀᥈▱࡟㐺ࡋࡓಙྕฎ⌮᪉ᘧࡢ㆟ㄽࢆ⾜࠺ࠋ2 ගࣇ࢓࢖ࣂ᥋⥆ᆺศᩓ࣮ࣞࢲࢩࢫࢸ࣒ ✵ 㠃࡟࠾ࡅࡿ␗≀᥈▱ᛶ⬟࡜ࡋ࡚㸪┤ᚄ
1 ࢖ࣥࢳ㧗ࡉ 1 ࢖ࣥࢳࡢ෇⟄≧ࡢ㔠ᒓ≀యࢆ 60 m ࡢ㊥㞳࡛᥈▱ࡍࡿࡇ࡜ࡀ᭱పᛶ⬟࡜ࡋ࡚ồࡵࡽࢀ࡚࠸ࡿ[2]ࠋࡇࡢࡼ࠺࡞㠀ᖖ࡟ᑠࡉ࠸␗≀ࢆ᥈▱ࡍࡿࡓࡵ࡟ࡣ㸪⮬ື㌴࡟⏝࠸ࡽࢀࡿ⾪✺㜵Ṇ⏝࣑ࣜἼ࣮ࣞࢲ➼࡟ẚ࡭㸪㧗ឤᗘࡀồࡵࡽࢀࡿ࡜ඹ࡟ヲ⣽࡞᝟ሗࢆྲྀᚓࡍࡿࡓࡵ࡟㧗ศゎ⬟ࡀᚲせ࡛࠶ࡿࠋᅗ  ⁥㉮㊰┘ど⏝࣑ࣜἼ࣮ࣞࢲࢩࢫࢸ࣒
RoF䠄Tx䠅㊰㠃⿦⨨RoF䠄Rx䠅ගษ᭰ჾ

RoF䠄Tx䠅ಙྕ※ไᚚჾ㊰㠃⿦⨨RoF䠄Rx䠅
RoF䠄Tx䠅ගษ᭰ჾཷಙჾ㊰㠃⿦⨨
RoF䠄Rx䠅
RoF䠄Tx䠅㊰㠃⿦⨨RoF䠄Rx䠅⾲♧ჾ୰ኸ⿦⨨RoF䠄Tx䠅㊰㠃⿦⨨RoF䠄Rx䠅ᅗ  ගࣇ࢓࢖ࣂ᥋⥆ᆺ࣑ࣜἼ࣮ࣞࢲࢩࢫࢸ࣒ᴫせࣈࣟࢵࢡᅗ࣑ࣜἼ࣮ࣞࢲࢆ⏝࠸ࡓ┘どࢩࢫࢸ࣒ࡣ㸪㧗ᛶ⬟࡞┘どࢩࢫࢸ࣒ࢆᵓ⠏࡛ࡁࡿྍ⬟ᛶࢆ᭷ࡍࡿ୍᪉㸪ᡤᮃᛶ⬟ᐇ⌧ࡢࡓࡵ࡟ࡣゎỴࡋ࡞ࡅࢀࡤ࡞ࡽ࡞࠸ᢏ⾡ⓗ࡞ㄢ㢟ࡀ」ᩘᏑᅾࡍࡿࠋ
ᅗ 1 ࠾ࡼࡧᅗ 2 ࡟ࡑࢀࡒࢀ㸪⁥㉮㊰┘ど⏝࣑ࣜἼ࣮ࣞࢲࢩࢫࢸ࣒ࡢᴫᛕᅗ࠾ࡼࡧࣈࣟࢵࢡᅗࢆ♧ࡍࠋගࣇ࢓࢖ࣂ᥋⥆ᆺ࣑ࣜἼ࣮ࣞࢲ࡛ࡣ㸪┘ど㡿ᇦࢆ」ᩘࡢ┘どࢭࣝ㡿ᇦ࡟ศ๭ࡋ࡚␗≀᥈▱ࢆ⾜࠺ࠋ࣮ࣞࢲࢩࢫࢸ࣒ࡣ㸪」ᩘ
ࡢ㊰㠃⿦⨨࠾ࡼࡧ୍ࡘࡢ୰ኸ⿦⨨࠿ࡽ࡞ࡾ㸪ࡑࡢ㛫ࢆගษ᭰ჾ࠾ࡼࡧࣇ࢓࢖ࣂ↓⥺ᶵ࠿ࡽ࡞ࡿࣇ࢓࢖ࣂ↓⥺ࢿࢵࢺ࣮࣡ࢡ࡛᥋⥆ࡍࡿࠋࡇࡇ࡛㸪ᥦ᱌ࡋ࡚࠸ࡿ࣮ࣞࢲࢩࢫࢸ࣒ࡣ୰ኸ
⿦⨨࡛⏕ᡂࡋࡓ࣑ࣜἼᖏ㏦ಙ࣮ࣞࢲಙྕࢆ㸪
RoF ᢏ⾡ࢆ⏝࠸㸪┤᥋㟁Ẽಙྕࢆගಙྕ࡟ኚ᥮ࡋ࡚㊰㠃⿦⨨࡟㓄ಙࡍࡿࡇ࡜ࢆ኱ࡁ࡞≉ᚩ࡜ࡋ࡚࠸ࡿ[3]ࠋ

─ 61 ─

電子航法研究所研究発表会（第15回平成27年６月）

100 m-40

Runway B

Through
Optical fiber pair

|S21| (dB)

-45

Opticalfiber

Runway shelter B

-50
-55
-60
-65

Facility building(Radar signal generation unit)ᅗ  ௝ྎ✵-70ᐇ㦂⏝ගࣇ࢓࢖ࣂᩜタ≧ἣFacility building(Radar Signal generation unit)

RunwayShelter AE/O

NetworkAnalyzer

5ᅗ  ✵

RunwayShelter B

10Frequency (GHz)1520㠃ගࣇ࢓࢖ࣂ 5R) ఏ㏦≉ᛶᐃ⤖ᯝ౛

0Radio-over-fiber
0 - 20 GHz

0Through
5 km
10 km

2,950 m-20

Opticalsignal|S21| (dB)O/E
2,950 mAgilent technologies
E8364C-40

E/O: Photoline MXAN-LN-40
O/E: U2T XPDV2120R

ᅗ  ✵-60

Optical enclosure unit㠃ගࣇ࢓࢖ࣂ 5R) ఏ㏦≉ᛶᐃࣈࣟࢵࢡᅗ

-80

3 ✵ 㠃࡟࠾ࡅࡿ RoF ఏ㏦≉ᛶ ගࣇ࢓࢖ࣂ᥋⥆ᆺ࣑ࣜἼ࣮ࣞࢲࢆ⏝࠸ࡓ⁥㉮㊰┘どࢩࢫࢸ࣒ࢆᐇ⌧ࡍࡿࡓࡵࡢせ⣲ᢏ⾡࡛࠶ࡿ㸪RoF ᢏ⾡ࢆ⏝࠸ࡓ࣮ࣞࢲಙྕࡢఏ㏦≉ᛶ࡟ࡘ࠸᳨࡚ウࢆ⾜࠺ࠋᐇ⎔ቃ࡟࠾࠸࡚ಙྕఏ㏦≉ᛶࢆホ౯ࡍࡿࡇ࡜ࡀᚲせ࡛࠶ࡿࡓࡵ㸪௝ྎ✵ ࡟࠾࠸࡚ᩜタࡉࢀࡓᐇ㦂⏝ගࣇ࢓࢖ࣂ≉ᛶホ౯ࢆᐇ᪋ࡍࡿࠋ௝ྎ✵ ࡟ࡣከᩘࡢᐇ㦂⏝ගࣇ࢓࢖ࣂࡀタ⨨ࡉࢀ࡚࠸ࡿࡀ㸪౑⏝ྍ⬟࡞ࣇ࢓࢖ࣂࡢ୰࡛
᭱ࡶ㛗㊥㞳࡜࡞ࡿගࣇ࢓࢖ࣂࢆ㑅ᢥࡍࡿࠋᅗ
3 ࡟㸪ᐇ㦂࡟౑⏝ࡋࡓගࣇ࢓࢖ࣂᩜタ≧ἣࢆ♧ࡍࠋᅗࡢྑୗ࡟㟁Ꮚ⯟ἲ◊✲ᡤᒾ἟ศᐊࡀ࠶ࡾ㸪ᕥഃ࡟ගᡂ➃⟽ࢆタ⨨ࡋ࡚࠸ࡿᐇ㦂⏝ࡢࢩ࢙ࣝࢱࡀ࠶ࡿࠋගࣇ࢓࢖ࣂࡢ඲㛗ࡣᒾ἟ศᐊᒁ⯋࠿ࡽ⁥㉮㊰⬥ࡢᐇ㦂⏝ࢩ࢙ࣝࢱࡲ࡛
ࡢ⣙ 2,950 m ࡛࠶ࡾ㸪ᐇ㦂⏝ࢩ࢙ࣝࢱෆ࡟࠾
࠸࡚ගࣃࢵࢳࢥ࣮ࢻ࡛᥋⥆ࡋ㸪ᑐ࡜ࡋ࡚඲㛗⣙ 5,900 m ࡢఏ㏦≉ᛶࢆྲྀᚓࡍࡿࠋගࣇ࢓࢖

102030Frequency (GHz)ᅗ  5R) 㛗㊥㞳ఏ㏦≉ᛶ40ᐃ⤖ᯝ౛ࣂࡣ㸪40 ⰺࡢ 1,550 Pm ࢩࣥࢢ࣮ࣝࣔࢻࣇ࢓
࢖ࣂ࡛࠶ࡾ㸪ᕷ㈍ࡢ㟁Ẽගኚ᥮ჾ࠾ࡼࡧග㟁Ẽኚ᥮ჾࢆ⏝࠸ࡿࠋᅗ 4 ࡟㸪࣋ࢡࢺࣝࢿࢵࢺ
࣮࣡ࢡ࢔ࢼࣛ࢖ࢨࢆ⏝࠸ࡓ RoF ఏ㏦≉ᛶᐃ⣔ࢆ♧ࡍࠋ
ᅗ 5 ࡟㸪ගࣇ࢓࢖ࣂఏ㏦≉ᛶ ᐃ⤖ᯝࡢ୍౛ࢆ♧ࡍࠋගࣇ࢓࢖ࣂ࡟ࡼࡿఏ㏦ᦆኻࡣ㸪20GHz ௨ୗ࡟࠾࠸࡚ࡣ㸪⣙ 10 dB ⛬ᗘ࡛࠶ࡿࠋ
ගࣇ࢓࢖ࣂ⮬యࡢᦆኻ࡜ࡋ࡚ࡣ኱ࡁ࠸ࡀ㸪ࣇ࢓࢖ࣂ⮬యࡢఏ㏦ᦆኻ࡟ຍ࠼㸪」ᩘࡢ⼥╔Ⅼ࠾ࡼࡧගࢥࢿࢡࢱ࡟ࡼࡿᦆኻ࡟㉳ᅉࡍࡿࠋ୍
᪉㸪⣙ 5,950 m ࡟࠾࠸࡚ࡶ⣙ 10 dB ௨ୗࡢఏ㏦ᦆኻ࡛࠶ࡿࡇ࡜࠿ࡽ㸪ᚑ᮶ࡢ㟁Ẽಙྕఏ㏦ࡼࡾࡶ኱ᖜ࡟ప࠸ఏ㏦ᦆኻࢆ☜ㄆࡋࡓࠋࡇࡇ
࡛㸪20 GHz ࡛ࡣගࣇ࢓࢖ࣂࡢ⩌㐜ᘏ≉ᛶ࡟ࡼࡾගኚㄪಙྕഃἼᖏ఩┦ࡀኚ໬ࡋ㸪ᦆኻࡀⱝᖸቑຍࡋ࡚࠸ࡿࠋࡇࢀࡣ㸪ᅗ 6 ࡟♧ࡍᐇ㦂─ 62 ─

電子航法研究所研究発表会（第15回平成27年６月）

W-bandSignalCentral unit
FFT, integration,
CFAR
Signalprocessing

Antenna unit No. 1㊰㠃⿦⨨䜰䞁䝔䝘ᒁ䜰䞁䝔䝘

A/DFilters, amplifiersReceiving signal(DigitizedOptical signal)

Multipliers, filters,
amplifiers

Transmission signal(Radio-over-fiber)

୰ኸ⿦⨨
FMCWಙྕⓎ⏕ჾ䠄௵ពಙྕⓎ⏕ჾ䠅

P.A.

x3

O/E etc.

Control
Display

E/O etc. (Signalgeneration)
FMCW
sourceග2㏴ಸჾගቑᖜჾ(Facility building)(Runway side)ཷಙಙྕఏ㏦⏝ග䝣䜯䜲䝞䠄䜲䞊䝃䝛䝑䝖䠅ᅗ  ࣑ࣜἼ࣮ࣞࢲࢩࢫࢸ࣒ࣈࣟࢵࢡᅗ㏦ಙಙྕఏ㏦⏝ග䝣䜯䜲䝞䠄RoF䠅ᅗ ࣑ࣜἼ࣮ࣞࢲࢩࢫࢸ࣒ࡢᴫほ
Antenna unit䜰䞁䝔䝘

95.5 – 96.5
GHz

31.8 - 32.2
GHz

P.A.

O/E

To radarcircuits

x3

Multipliers, filters,
amplifiersCentral unit
Transmission
signal15.9 - 16.1
GHzE/O
EFDA
Radio
Optical
Optical-over-fiber amplifier multiplier(doubler)

3.98 4.03 GHzx4
FMCW
sourceArbitrary waveform generator
Agilent technologies
M8190Aᅗ  ㏦ಙಙྕ⏕ᡂ࣭ఏ㏦⣔ࣈࣟࢵࢡᅗ⾲  ගࣇ࢓࢖ࣂ᥋⥆ᆺ࣑ࣜἼ࣮ࣞࢲ௙ᵝ
࿘Ἴᩘᖏ95.5 GHz – 96.5 GHz㏦ಙᖏᇦᖜ
1 GHz㏦ಙ㟁ຊ26 dBm࢔ࣥࢸࢼ฼ᚓ 42 dBi‒ᅗ  ㊰㠃⿦⨨࢔ࣥࢸࢼᒁࡢᴫほᐊ࡟࠾ࡅࡿ㛗㊥㞳ఏ㏦ヨ㦂࡛᫂ࡽ࠿࡛࠶ࡿࡼ࠺࡟㸪ගࣇ࢓࢖ࣂࡢ⩌㐜ᘏ≉ᛶ࡟ࡼࡾගኚㄪಙྕࡢ୧ഃἼᖏࡢ఩┦ࡀ཯㌿ࡋ஫࠸࡟ᡴࡕᾘࡋྜ࠺ࡓࡵ࡛࠶ࡿࠋࡇࡢ⤖ᯝࢆ㋃ࡲ࠼㸪ᥦ᱌ࡍࡿࢩࢫࢸ࣒ᵓᡂ࡛ࡣ㏦ಙಙྕ࿘Ἴᩘ 96GHz ࡢ 3 ศࡢ 1 ࡢ⣙ 32 GHz ࡛ࡢ RoF ఏ㏦ࢆ᝿ᐃࡋ࡚࠸ࡿࡓࡵ㸪ࡇࡢᙳ㡪ࢆཷࡅ࡞࠸ග
ᦙ㏦Ἴᢚᅽ୧ഃἼᖏኚㄪࢆ⏝࠸ࡓග 2 ㏴ಸჾࢆ㐺⏝ࡋ㸪㊰㠃⿦⨨ࡲ࡛ࡢࣇ࢓࢖ࣂ㛗ࡉ࡟↓㛵ಀ࡟タ⨨࡛ࡁࡿᵓ㐀࡜ࡋࡓࠋ

4 ගࣇ࢓࢖ࣂ᥋⥆ᆺ࣑ࣜἼ࣮ࣞࢲࢩࢫࢸ࣒
 ᅗ 7 ࡟㸪ྠ୍⟠ᡤ࡟୰ኸ⿦⨨࠾ࡼࡧ㊰㠃⿦⨨࢔ࣥࢸࢼᒁࢆタ⨨ࡋࡓ඲యࢩࢫࢸ࣒ᴫほᅗࢆ♧ࡍࠋ୰ኸഃ⿦⨨ࡣ 19 ࢖ࣥࢳࣛࢵࢡෆ࡟タ⨨ࡋ࡚࠶ࡾ㸪ಙྕⓎ⏕⿦⨨㸪ಙྕฎ⌮⿦⨨㸪
ග 2 ㏴ಸჾ࠾ࡼࡧගቑᖜჾࢆ୰ᚰ࡜ࡋ࡚࠸ࡿࠋ
ࡲࡓ㸪ᅗ 8 ࡟㊰㠃⿦⨨࢔ࣥࢸࢼᒁࡢᴫほᣑ኱ᅗࢆ♧ࡍࠋග㟁Ẽኚ᥮ჾ࠾ࡼࡧ࣑ࣜἼ㏦ཷಙ
ᅇ㊰ࢆྠ୍⟂యෆ࡟タ⨨ࡋ࡚࠾ࡾ㸪2 ㍈࡛࢔ࣥࢸࢼࣅ࣮࣒㉮ᰝࢆไᚚྍ⬟࡞ࣃࣛ࣎ࣛ཯ᑕ
ᯈ࢔ࣥࢸࢼࢆ⏝࠸ࡿࠋࣃࣛ࣎ࣛ཯ᑕᯈ࢔ࣥࢸ
ࢼࡢ฼ᚓࡣ 96 GHz ࡟࠾࠸࡚ 42 dBi ࡛࠶ࡿࠋ
ᅗ 9 ࠾ࡼࡧᅗ 10 ࡟㸪ࡑࢀࡒࢀᵓ⠏ࡋࡓ࣮ࣞࢲࢩࢫࢸ࣒ࡢ⣔⤫ᅗ࠾ࡼࡧ࣮ࣞࢲ㏦ಙಙྕ⏕ᡂ⣔࠾ࡼࡧఏ㏦⣔ࣈࣟࢵࢡᅗࢆ♧ࡍࠋࡲࡓ㸪⾲ 1 ࡟ᵓ⠏ࡋࡓගࣇ࢓࢖ࣂ᥋⥆ᆺ࣑ࣜἼ࣮ࣞࢲࡢ௙ᵝࢆ♧ࡍࠋᮏᖺᗘࡣ㸪᥈▱㊥㞳ᨵၿࢆ┠ᣦࡋࡓ᭱኱㏦ಙ㟁ຊ 400 mW ࡢ㧗ฟຊᆺ࢔ࣥࢸࢼᒁ࡜㊥㞳ศゎ⬟ᨵၿࢆ┠ᣦࡋࡓ㏦ಙ
ᖏᇦᖜ 8 GHz ࡢᗈᖏᇦ࢔ࣥࢸࢼᒁࢆᵓ⠏ࡋࡓࡀ㸪ᮏ✏࡛ࡣ㧗ฟຊᆺᒁ࡟ࡘ࠸࡚㏙࡭ࡿࠋ
ᮏ࣮ࣞࢲࡣ FMCW ᪉ᘧ࡟ᇶ࡙ࡃ࣮ࣞࢲ࡛࠶ࡾ㸪㏦ಙಙྕ⏕ᡂ࡟ࡣ௵ពಙྕⓎ⏕ჾࢆ⏝࠸㸪
᭱኱ 10 kHz ࡢ㧗㏿ FM ࢳ࣮ࣕࣉࢆᐇ⌧ࡍࡿࠋ
௵ពಙྕⓎ⏕ჾ࡛ 4 GHz ᖏࡢಙྕࢆ⏕ᡂࡋࡓᚋ࡟㟁Ẽಙྕ࡛ 4 ㏴ಸࡋ 16 GHz ᖏಙྕ࡟ኚ᥮ࡍࡿࠋḟ࡟㸪ග 2 ㏴ಸჾࢆ⏝࠸࡚ගಙྕ─ 63 ─電子航法研究所研究発表会（第15回平成27年６月）

࡛ 2 ㏴ಸࡋ㸪32 GHz ᖏࡢኚㄪᡂศࢆྵࡴගಙྕ࡟ኚ᥮ࡍࡿࠋࡉࡽ࡟㸪୰ኸ⿦⨨࡟࠾࠸࡚ගቑᖜჾࢆ⏝࠸㸪ගࣇ࢓࢖ࣂఏ㏦࡟࠾ࡅࡿᦆ
ኻࢆ⿵ൾࡍࡿࠋ
‒5 ௝ྎ✵ ࣮ࣞࢲ᥈▱ᐇ㦂ᵓ⠏ࡋࡓගࣇ࢓࢖ࣂ᥋⥆ᆺ࣑ࣜἼ࣮ࣞࢲࢩࢫࢸ࣒ࢆ⏝࠸㸪ᐇ㦂ᒁචチྲྀᚓᚋ࡟௝ྎ✵࡟࠾࠸࡚⁥㉮㊰ୖࡢ཯ᑕჾࢆ᥈▱ࡍࡿ᥈▱ヨ㦂ࢆᐇ᪋ࡋࡓࠋ࣮ࣞࢲཷಙಙྕฎ⌮ᅇ㊰࡛ࡣ㸪
㧗㏿ FPGA ᅇ㊰ࢆά⏝ࡍࡿࡇ࡜࡛᭱኱ẖ⛊ 2ᅇࡢࣜ࢔ࣝࢱ࢖࣒ PPI ࢫࢥ࣮ࣉᥥ⏬ࡀྍ⬟࡛࠶ࡿࠋࡉࡽ࡟㸪CFAR㸦Constant False AlarmRate㸧 ࡟ࡼࡿࡋࡁ࠸್ุᐃ₇⟬ฎ⌮ࢆᐇ⿦
ࡋࡓࠋCFAR ࢆ⏝࠸ࡿࡇ࡜࡛ࣀ࢖ࢬࣇࣟ࢔࠿
ࡽࡋࡁ࠸್ࡢᕪࢆᐃ㔞ⓗ࡟タᐃࡍࡿࡇ࡜ࡀྍ⬟࡜࡞ࡾ㸪୍ᐃࡢㄗ㆙ሗ☜⋡ࡀᚓࡽࢀࡿ࡜࡜
ࡶ࡟㸪ᑐ㇟≀ࢆࡼࡾ᫂☜࡟ุ᩿ࡍࡿࡇ࡜ࡀྍ⬟࡜࡞ࡿࠋ୍᪉㸪CFAR ฎ⌮ࡢ๓࡟ࣀ࢖ࢬࣇ
ࣟ࢔ࡢᖹ⁥໬ࢆ༑ศ࡟⾜࠺ࡇ࡜ࡀᚲせ࡜࡞ࡿࠋFPGA ᅇ㊰࡟ᖹᆒᩘࢆ 2 ࠿ࡽ 65,536 ࡲ࡛௵ព࡟ኚ໬ྍ⬟࡞ࣀࣥࢥࣄ࣮ࣞࣥࢺ✚ศᅇ㊰ࢆᐇ⿦ࡋ㸪ẖ⛊᭱኱ 10,000 ᅇࡢࢹ࣮ࢱ᭦᪂࣮ࣞࢺࢆୗࡆࡎ࡟㸪CFAR ࡟㐺ࡋࡓᅇ㊰ࢆᐇ⌧ࡋࡓࠋᅗ 11 ࡟㸪᥈▱ᐇ㦂࡟࠾ࡅࡿ࣮ࣞࢲ཯ᑕჾタ⨨≧ἣࢆ♧ࡍࠋࡲࡓ㸪ᅗ 12 ࡟⁥㉮㊰ୖ࡟࠾ࡅࡿᑐ㇟≀ࡢ᥈▱⤖ᯝ࡟ࡘ࠸࡚㸪
CFAR ฎ⌮᭷↓ࡢẚ㍑⤖ᯝࢆ♧ࡍࠋࣀ࢖ࢬࣇࣟ࢔ࢆᖹ⁥໬ࡋ㸪㐺ษ࡞ࡋࡁ࠸್ࢆタᐃࡍࡿࡇ࡜࡛ᑐ㇟≀ࢆ᫂☜࡟᳨▱ࡍࡿಙྕฎ⌮ᅇ㊰ࢆ᭷ࡍࡿ࣑ࣜἼ࣮ࣞࢲࢩࢫࢸ࣒ࢆᐇ⌧ࡋࡓࠋ‒
6 ࡲ࡜ࡵගࣇ࢓࢖ࣂ᥋⥆ᆺ࣑ࣜἼ࣮ࣞࢲ࡟ࡘ࠸࡚㸪✵ 㠃 RoF ఏ㏦≉ᛶࢆホ౯ࡋ㸪␗≀᥈▱ᛂ⏝࡟㐺ࡋࡓᵓᡂࢆ᫂ࡽ࠿࡟ࡋࡓࠋࡉࡽ࡟㸪ᵓ⠏ࡋࡓヨస࣑ࣜἼ࣮ࣞࢲࢩࢫࢸ࣒ࢆ⏝࠸㸪㧗㏿
FPGA ಙྕฎ⌮ᅇ㊰ࢆ㐺⏝ࡍࡿࡇ࡜࡛㸪᥈▱ヨ㦂࡟࠾࠸࡚ᑐ㇟≀᫂☜໬ࢆᐇ⌧ࡋࡓࠋㅰ㎡ᮏ◊✲ࡢ୍㒊ࡣ㸪⥲ົ┬࠿ࡽࡢཷク◊✲
ࠕ90 GHz ࣜࢽ࢔ࢭࣝ࡟ࡼࡿ㧗⢭ᗘ࢖࣓࣮ࢪࣥࢢᢏ⾡ࡢ◊✲㛤Ⓨࠖ࡟ࡼࡾᐇ᪋ࡉࢀࡓࠋ‒5m

䝺䞊䝎཯ᑕჾ
㽢3⟠ᡤ
䠄タ⨨㧗: 1.2 m䠅

5m

䝡䞊䝮㉮ᰝ᪉ྥ

5m

䝭䝸Ἴ䝺䞊䝎
䠄タ⨨㧗:1.2 m䠅

ᅗ  ௝ྎ✵ ࣮ࣞࢲ᥈▱ヨ㦂࡟࠾ࡅࡿ
࣮ࣞࢲ཯ᑕჾタ⨨≧ἣ䝺䞊䝎཯ᑕჾ

䝺䞊䝎఩⨨㸦D㸧䝺䞊䝎཯ᑕჾ䝺䞊䝎఩⨨㸦E㸧ᅗ  ࣑ࣜἼ࣮ࣞࢲ 33, ࢫࢥ࣮ࣉ⾲♧౛㸦D㸧ಙྕฎ⌮࡞ࡋ࠾ࡼࡧ㸦E㸧ಙྕฎ⌮࠶ࡾཧ⪃ᩥ⊩
[1] BEA Report translation, “Accident on 25
July 2000 at La Patte d’Oie in Gonesse (95)to the Concorde resisterd F-BTSC operated
by Air France,” f-sc000725a, Jan. 2002.
[2] FAA, “Airport Foreign Object Debris(FOD) Detection System”, Advisory Circular AC150/5220-24, September 30, 2009.
[3] S. Futatsumori, K. Morioka, A.
Kohmura, K. Okada and N. Yonemoto,“Experimental feasibility study of 96 GHz
FMCW millimeter-wave radar based uponRadio-over-Fiber technology͇, Proceedingsof IEEE MWP/APMP2014, TUEF-9, pp.
1-4, Oct. 2014.

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