復(fù)雜天氣及海風(fēng)對(duì)天基被動(dòng)干涉微波輻射無(wú)源探測(cè)系統(tǒng)性能的影響

宋廣南; 盧海梁; 李浩; 李一楠; 郎量; 董思喬; 李鵬飛; 呂容川

doi:10.11999/JEIT190534

復(fù)雜天氣及海風(fēng)對(duì)天基被動(dòng)干涉微波輻射無(wú)源探測(cè)系統(tǒng)性能的影響

doi: 10.11999/JEIT190534 cstr: 32379.14.JEIT190534

1.
中國(guó)空間技術(shù)研究院西安分院西安 710100
2.
華中科技大學(xué)電子信息與通信學(xué)院武漢 430074
3.
國(guó)家無(wú)線(xiàn)電監(jiān)測(cè)中心北京 100037

詳細(xì)信息

作者簡(jiǎn)介:
宋廣南：男，1988年生，工程師，研究方向?yàn)楸粍?dòng)微波遙感、綜合孔徑微波輻射計(jì)系統(tǒng)設(shè)計(jì)等

盧海梁：男，1986年生，高級(jí)工程師，研究方向?yàn)楸粍?dòng)微波輻射無(wú)源探測(cè)、被動(dòng)微波遙感、射頻干擾檢測(cè)等

李浩：男，1980年生，研究員，研究方向?yàn)槿珮O化微波輻射計(jì)、綜合孔徑微波輻射計(jì)系統(tǒng)設(shè)計(jì)等

李一楠：男，1985年生，高級(jí)工程師，研究方向?yàn)楸粍?dòng)微波遙感、綜合孔徑微波輻射計(jì)系統(tǒng)設(shè)計(jì)等

郎量：男，1976年生，副教授，研究方向?yàn)槲⒉ㄟb感理論與微波遙感器等

董思喬：男，1984年生，工程師，研究方向?yàn)闊o(wú)線(xiàn)電管理與檢測(cè)等

李鵬飛：男，1989年生，工程師，研究方向?yàn)楸粍?dòng)微波遙感、綜合孔徑微波輻射計(jì)系統(tǒng)設(shè)計(jì)等

呂容川：女，1982年生，研究員，研究方向?yàn)槿珮O化微波輻射計(jì)、被動(dòng)微波遙感、大氣探測(cè)等

通訊作者:
盧海梁　396689lhl@163.com

中圖分類(lèi)號(hào): TN24; TP79
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出版歷程
- 收稿日期: 2019-07-16
- 修回日期: 2020-06-08
- 網(wǎng)絡(luò)出版日期: 2020-07-11
- 刊出日期: 2020-11-16

The Effects of Complex Weather and Sea Wind on the Performance of Space-borne Passive Interferometric Microwave Detection System

1.
China Academy of Space Technology (Xi’an), Xi’an 710100, China
2.
School of Electronic Information and Communications, Huazhong University of Science and Technology, Wuhan 430074, China
3.
State Radio Monitoring Center, Beijing 100037, China

摘要

摘要: 基于微波輻射無(wú)源探測(cè)系統(tǒng)的目標(biāo)探測(cè)方程，該文探討了云、霧和雨等復(fù)雜天氣以及海風(fēng)對(duì)天基被動(dòng)干涉微波輻射無(wú)源探測(cè)系統(tǒng)的影響，定量化仿真分析了這些因素對(duì)系統(tǒng)探測(cè)能力的影響，實(shí)驗(yàn)驗(yàn)證了被動(dòng)干涉微波輻射無(wú)源探測(cè)系統(tǒng)對(duì)云層的穿透能力。研究結(jié)果表明：云、霧和雨等復(fù)雜天氣對(duì)被動(dòng)干涉微波輻射無(wú)源探測(cè)系統(tǒng)對(duì)海面目標(biāo)的探測(cè)有一定的影響，但在低頻段云霧影響較小，可忽略不計(jì)；而降雨會(huì)對(duì)系統(tǒng)的目標(biāo)探測(cè)能力影響較大；海風(fēng)對(duì)海面金屬目標(biāo)的探測(cè)是有利的，而海風(fēng)對(duì)隱身目標(biāo)探測(cè)是不利的，會(huì)降低系統(tǒng)的探測(cè)能力。
- 無(wú)源探測(cè) /
- 復(fù)雜天氣 /
- 海風(fēng)
Abstract: Based on the target detection equation of the passive interferometric microwave system, the effects of complex weather on the detection ability of the passive interferometric microwave system are discussed for the sea surface target, such as clouds, fog and rain, and sea winds. Quantitative simulations are also performed to assess the effects of these previous mentioned factors. The experiments are also performed to demonstrate the passive interferometric microwave system penetrating the clouds. Both theoretical and simulation results show that complex weather has a negative impact on the passive interferometric microwave systems in the sea target detection, such as clouds, fog and rain. However, the impacts can be neglected in low frequency, since the impacts of clouds in low frequency is very small. On the other hand, rainfall will seriously degrade the system’s target detection capability. Sea winds have a positive impact in the metallic target detection. However, sea winds have a negative impact and reduce the system’s detection capability for the stealthy target detection.
- Passive detection /
- Complex weather /
- Sea wind

HTML全文

圖 1 綜合孔徑微波輻射測(cè)量原理示意圖

下載: 全尺寸圖片幻燈片

圖 2 不同水汽含量的星下點(diǎn)目標(biāo)探測(cè)距離與探測(cè)概率的關(guān)系曲線(xiàn)

下載: 全尺寸圖片幻燈片

圖 3 星下點(diǎn)目標(biāo)探測(cè)距離與探測(cè)概率的關(guān)系曲線(xiàn)

下載: 全尺寸圖片幻燈片

圖 4 不同液水含量的星下點(diǎn)目標(biāo)探測(cè)距離與探測(cè)概率的關(guān)系曲線(xiàn)

下載: 全尺寸圖片幻燈片

圖 5 星下點(diǎn)目標(biāo)探測(cè)距離與探測(cè)概率的關(guān)系曲線(xiàn)

下載: 全尺寸圖片幻燈片

圖 6 不同風(fēng)速的金屬目標(biāo)星下點(diǎn)探測(cè)距離與探測(cè)概率的關(guān)系曲線(xiàn)

下載: 全尺寸圖片幻燈片

圖 7 不同風(fēng)速的隱身目標(biāo)星下點(diǎn)探測(cè)距離與探測(cè)概率的關(guān)系曲線(xiàn)

下載: 全尺寸圖片幻燈片

圖 8 濃云條件下海面目標(biāo)探測(cè)

下載: 全尺寸圖片幻燈片

表 1 溫度10°、星下點(diǎn)，霧高100 m的衰減(dB)

霧型	能見(jiàn)度(km)	霧含水量$({\rm{g}}/{{\rm{m}}}^{3})$	94 GHz	37 GHz	23.8 GHz	18.7 GHz	10.7 GHz
平流霧	重霧0.05	11.3135	4.8569	1.0016	0.4305	0.2686	0.0890
	濃霧0.20	1.5583	0.6690	0.1380	0.0593	0.0370	0.0123
	中霧0.50	0.4203	0.1805	0.0372	0.0160	0.0100	0.0033
	輕霧1.00	0.1560	0.0670	0.0138	0.0059	0.0037	0.0012

下載: 導(dǎo)出CSV

表 2 溫度10°、星下點(diǎn)、不同云型的衰減(dB)

云型	云底層(km)	云底層(km)	含水量$({\rm{g}}/{{\rm{m}}}^{3})$	94 GHz	37 GHz	23.8 GHz	18.7 GHz	10.7 GHz
晴空積云	0.5	1	0.50	1.0732	0.2213	0.0951	0.0594	0.0197
卷積云	5.0	7	0.10	0.8586	0.1771	0.0761	0.0475	0.0157
低層云	0.5	1	0.25	0.5366	0.1107	0.0476	0.0297	0.0098
濃積云	1.6	2	0.80	1.3738	0.2833	0.1238	0.0760	0.0252

下載: 導(dǎo)出CSV

表 3 溫度10°、星下點(diǎn)、不同雨型衰減(dB)

雨型	降雨率(mm/h)	94 GHz	37 GHz	23.8 GHz	18.7 GHz	10.7 GHz
微雨	0.25	12.9574	1.5068	0.4642	0.2235	0.0281
小雨	1.00	36.7631	5.1375	1.8805	1.0317	0.1604
中雨	4.00	96.5170	17.5168	7.6177	4.6378	0.9154
大雨	16.00	219.3243	59.7251	30.8595	20.5155	5.2244

下載: 導(dǎo)出CSV

表 4 X波段綜合孔徑微波輻射計(jì)系統(tǒng)相關(guān)參量

指標(biāo)	參量
中心頻率	10.65 GHz
帶寬	100 MHz
積分時(shí)間	100 ms
天線(xiàn)類(lèi)型	Y型
天線(xiàn)個(gè)數(shù)	19
單元間距	0.95倍波長(zhǎng)

下載: 導(dǎo)出CSV

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