Journal of Infrared and Millimeter Waves, Volume. 39, Issue 5, 660(2020)

Combining-SNCR evaluation of dual-models aerial targets’ infrared bands

Lei ZHANG1, Lue CHEN2,3,4, Han-Lu ZHU2,3,4, and Peng RAO2,3、*
Author Affiliations
  • 1Beijing Institute of Tracking and Telecommunication Technology,Beijing100094,China
  • 2Key Laboratory of Intelligent Infrared Perception,Chinese Academy of Sciences,Shanghai200083,China
  • 3Shanghai Institute of Technical Physics of the Chinese Academy of Sciences,Shanghai200083,China
  • 4University of Chinese Academy of Sciences,Beijing100049,China
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    Figures & Tables(15)
    The real form of trapezoidal plume
    The real form of cone plume
    The simulation model of trapezoidal plume
    The simulation model of cone plume
    The projection shape under different detection angles φ
    The emissivity of the plume
    SNCR of B2 at a flying height of 15 km,(a) medium wave 3~5 μm high cumulus cloud background SNCR,(b)medium wave 3~5 μm standard cirrus background SNCR,(c) long wave 8~12 μm high cumulus cloud SNCR in the background,(d)SNCR in the background of long-wave 8~12 μm standard cirrus clouds
    SNCR of F15 at a flying height of 15 km,(a)medium wave 3~5 μm high cumulus cloud background SNCR,(b)medium wave 3~5 μm standard cirrus background SNCR,(c)long wave 8~12 μm high cumulus cloud SNCR in the background, (d)SNCR in the background of long-wave 8~12 μm standard cirrus clouds
    SNCR value of Boeing at a flying height of 15 km, (a) SNCR in the background of 3~5 μm high cumulus cloud in medium wave,(b)SNCR in the background of 3~5 μm standard cirrus cloud in medium wave,(c)Long wave 8~12 μm high cumulus cloud SNCR in the background,(d)SNCR in the background of long-wave 8~12 μm standard cirrus clouds
    SNCR value of Boeing at a flying height of 5 km, (a)SNCR in the background of 3~5 μm high cumulus clouds in medium wave,(b)SNCR in the background of 3~5 μm standard cirrus in medium wave,(c)Long wave 8~12 μm high cumulus cloud SNCR in the background,(d)SNCR in the background of long-wave 8~12 μm standard cirrus clouds
    • Table 1. 三类目标基本参数

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      Table 1. 三类目标基本参数

      飞机类型B2F15波音
      机长 / m21.0319.4336.5
      翼展 / m248356.591.8
      机身半径 / m130.81.88
      喷口半径 / m1.10.60.5
      喷口温度/ K1 0999481 099
    • Table 2. 尾焰参数

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      Table 2. 尾焰参数

      飞机类型锥形尾焰半径/m,温度/K筒形尾焰半径/m, 温度K
      B2

      (1,1,1,1)

      (1,4,8,16)

      (934,496,365,310)

      F15

      (0.6,0.6,0.6,0.6)

      (1.2,2.4,4.8,9.6)

      (805,420,320,260)

      (0.6,0.9,1.2)

      (0.9,1.2,1.5)

      (800,660,500)

      波音

      (0.5,0.5,0.5,0.5)

      (0.5,1,1.5,2)

      (640,336,250,200)

      (0.5,0.75,1)

      (0.75,1,1.25)

      (640,530,400)

    • Table 3. 探测系统相关参数

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      Table 3. 探测系统相关参数

      波段/参数中波3~5μm长波8~12μm
      尺寸μm1530
      焦距/m0.50.5
      口径/mm400400
      F#1.251.25
      轨道高度/km1 0001 000
      积分时间μs0.10.2
      满阱电荷Me-5.818
      读出噪声Me-5005 000
      量化位数/bit1416
    • Table 4. 飞机各部分在不同波段的辐射强度

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      Table 4. 飞机各部分在不同波段的辐射强度

      飞机类型波段μm4.05~4.153.95~4.158.5~99.2~9.69.6~12
      B2尾焰辐射强度W/Sr1 4381 4771001669
      整体辐射强度W/Sr1 4401 4801 4794202 692
      F15尾焰辐射强度W/Sr313321284.620.7
      整体辐射强度W/Sr31332218855384
      波音尾焰辐射强度W/Sr10110415.62.712.5
      整体辐射强度W/Sr1021066291861 223
    • Table 5. 三类飞机目标在不同背景下的SNCR峰值波段、波段间隔和峰值SNCR、SNR和SCR值

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      Table 5. 三类飞机目标在不同背景下的SNCR峰值波段、波段间隔和峰值SNCR、SNR和SCR值

      云背景飞机类型波段μm波段间隔μm峰值SNCR峰值SNR峰值SCR
      中波高积云B24.05~4.150.3~0.578.679803
      F154.05~4.150.3~0.516.917175
      波音4.05~4.150.3~0.55.675.757
      中波标准卷云B23.95~4.150.3~0.580.781600
      F153.95~4.150.3~0.517.617.8130
      波音3.95~4.150.3~0.55.9642
      长波高积云B29.2~9.60.2~0.518.718.9118
      F159.2~9.60.2~0.52.62.616
      波音9.2~9.60.2~0.58.028.1250.6
      长波标准卷云B28.5~9/9.6~120.35~0.573/13182/174165/201
      F158.5~9/9.6~120.35~0.59.8/2011/2622/30
      波音8.5~9/9.6~120.35~0.529.5/5833/7866/89
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    Lei ZHANG, Lue CHEN, Han-Lu ZHU, Peng RAO. Combining-SNCR evaluation of dual-models aerial targets’ infrared bands[J]. Journal of Infrared and Millimeter Waves, 2020, 39(5): 660

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    Paper Information

    Category: Image Processing and Software Simulation

    Received: Aug. 29, 2019

    Accepted: --

    Published Online: Dec. 29, 2020

    The Author Email: Peng RAO (peng_rao@mail.sitp.ac.cn)

    DOI:10.11972/j.issn.1001-9014.2020.05.017

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