Journals / Düzce Üniversitesi Bilim ve Teknoloji Dergisi / 2020 / Cilt: 8 - Sayı: 2

Determining the Correct Position of the Radiometric Receiver on the Parabolic Reflector Antenna for the Passive Millimeter Wave Imaging System

Pasif Milimetre Dalga Görüntüleme Sistemi için Radyometrik Alıcının Parabolik Yansıtıcı Antendeki Doğru Konumunun Belirlenmesi

Pages
1580–1585
Publication Date
2022-10-12
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The results showed that the detection was from a point close to the connecting part, not the aperture end of the horn antenna connected to the radiometric receiver.

📌 3 Key Takeaways

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Objective & Hypothesis:In areas such as defense and navigation; a variety of weather events that prevent vision, such as fog, rain, and dust, where optical and infrared imaging systems cannot work properly, the Passive MilliMeter Wave Imaging System (PMMWIS) can be used as a complementary sensor to display the environment.
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Key Findings & Data:This system where the radiometric receiver is located at the focal point of the parabolic reflector antenna and the antenna is scanned by a positioner operating on the two axis (azimuth and elevation) is very technological.
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Conclusion & Impact:The results showed that the detection was from a point close to the connecting part, not the aperture end of the horn antenna connected to the radiometric receiver.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:odak noktası · parabolik yansıtıcı anten · pasif milimetre dalga görüntüleme sistemi

Abstract

In areas such as defense and navigation; a variety of weather events that prevent vision, such as fog, rain, and dust, where optical and infrared imaging systems cannot work properly, the Passive MilliMeter Wave Imaging System (PMMWIS) can be used as a complementary sensor to display the environment. This system where the radiometric receiver is located at the focal point of the parabolic reflector antenna and the antenna is scanned by a positioner operating on the two axis (azimuth and elevation) is very technological. Because the signal from the scenario displayed in a PMMWIS is rather weak; in order to achieve a good amplification and to obtain the optimal signal from the receiver, it is of great importance that the radiometric receiver should be positioned in the correct position of the parabolic reflector antenna. In this study; when the PMMWIS antenna was looking at a fixed viewing point, such as sky, the radiometric receiver was shifted at certain distances from the parabolic reflector antenna and the position where the optimal signal was obtained. The results showed that the detection was from a point close to the connecting part, not the aperture end of the horn antenna connected to the radiometric receiver.

Özet

Savunma ve navigasyon gibi alanlarda, optik ve kızılötesi görüntüleme sistemlerinin sağlıklı çalışamadığı sis, yağmur ve toz gibi görüşü engelleyen çeşitli hava olaylarında, ortamı görüntülemek için, tamamlayıcı sensör olarak Pasif MiliMetre Dalga Görüntüleme Sistemi (PMMDGS) kullanılabilir. Sistem; radyometrik alıcının parabolik yansıtıcı anteninin odak noktasında bulunduğu ve bu antenin iki eksende (azimut ve kalkış) çalışan bir konumlandırıcı tarafından taranmasıyla görüntülemenin yapıldığı bir teknolojiye sahiptir. Bir PMMDGS’de görüntülenen ortamdan gelen sinyalin oldukça zayıf olmasından dolayı hem iyi bir kuvvetlendirmenin yapılması hem de alıcıdan optimal sinyalin elde edilebilmesi için radyometrik alıcının parabolik yansıtıcı antenin odak noktasına doğru konumunda yerleştirilmesi büyük bir önem arz etmektedir. Bu çalışmada; PMMDGS’nin anteni, gökyüzü gibi sabit bir görüntüleme noktasına yönlendirilmiş iken radyometrik alıcı, parabolik yansıtıcı antenden belli mesafelerde kaydırılmış ve optimal sinyalin elde edildiği konum bulunmuştur. Sonuçlar, algılamanın radyometrik alıcıya bağlı olan horn antenin açıklık ucundan değil, bağlantı kısmına yakın bir noktadan olduğunu göstermiştir.

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Cite This Article

DUMAN, M., SALMAN, A. O. (2022). Determining the Correct Position of the Radiometric Receiver on the Parabolic Reflector Antenna for the Passive Millimeter Wave Imaging System. Düzce Üniversitesi Bilim ve Teknoloji Dergisi, Cilt: 8 - Sayı: 2, 1580–1585. https://ajindex.com/articles/494120

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