21 September 2019

Defence Eyes Up UNSW's New Passive Radar Tech

21 September 2019


Satellite GPS signals can provide a snapshot of the sea and terrestrial conditions by the way they are reflected from the earth's surface (photo : IT  News)

A new sensor array being developed at the University of New South Wales has piqued the Defence Force’s interest for its ability to passively use existing GPS signals to silently monitor everything from ships and infrastructure to the weather.

The sensor, developed by remote sensing specialist Professor Andrew Dempster and his colleagues, analyses satellite navigation signals reflected off hard objects and large bodies of water, regardless of cloud or tree cover.

Four generations have the sensors have been developed so far, with the latest, ‘Kea’, being launched into space aboard cubesats - cheap, miniature satellites weighing only 2kg and measuring 10cm x 10cm x 20cm.

“What we do is measure the delay from the satellite to surface and back to the receiver on the satellite,” Dempster said.

“Because there are multiple facets on ocean waves that it can reflect from, it means that we get a wider response in that delay from the different angles where the signals are reflected.

“The rougher the seas, the wider the response. We also measure the Doppler frequency shift in those reflected signals.”

Dempster said the resulting data could have a wide range of uses outside of defence, naming maritime companies, oceanographers, and wave power generation companies as potential users in the future.

“As an example of how it could be useful, gas companies often refuel their big tankers out at sea, which means safety can be compromised by weather conditions. So if you can refuel your ship for an extra half an hour because you have better knowledge of changes in sea state, then you can start putting a dollar value on what that time saving means to your company.”

The ambient signals also bounce off metallic structures like ships and power poles differently, providing extra intel to defence agencies without needing to send out their own radar ping that could be picked up by other agencies.

The sensors can also be deployed at different altitudes, which was how the power pylon was detected.

“Five years ago we took one of these receivers on a plane and flew it over a forest and recorded the raw signal and played it back through our new instrument,” Dempster said.

“As we flew over the forest, we were able to pick out a power pylon which would otherwise be hidden from view. This shows that infrastructure that stays hidden even in satellite images can now be detected.”

They could also be fitted to high altitude persistent systems (HAPS), which fly autonomously at around twice the altitude of regular aircraft, he said, which allows solar-powered system to avoid dangerous weather conditions lower down and stay aloft for months at a time.

The current Kea generation of receivers will continue to be refined over the coming months, with a view to consolidate the hardware needed to obtain, process and produce clear data.

“Currently we’re looking to keep the two receiver architecture for the instrument but in the medium term we’d like to develop a single board solution that does all the GNSS (Global Navigation Satellite System) work plus incorporate the control computer, data storage and communication functions.

(IT News)

53 komentar:

  1. Balasan
    1. THE IQ OF THIS INDONS ANIMAL IS BELOW.

      Hapus
    2. This malon CRAZY...
      Miskin...
      Tolol ☝

      Hapus
  2. selamat osi py tukang profesor radar haha!😏😏😏
    kita jugak py ahli radar prof josapat hore haha!πŸ‘πŸ‘πŸ‘

    BalasHapus
  3. om pit, cuman gred a aje gak punye tukang propesor radar haha!πŸ‘»πŸ‘»πŸ‘»

    BalasHapus
    Balasan
    1. Ada om palu, propesor radar pelacak dubur perawan

      Hapus
    2. Kerajaan Malaisyapon punya keupayaan produk mainan kecik macam ni

      Hapus
    3. Ada om yaitu prof ahli jubor 😁😁

      Hapus
  4. relod aahh...

    Divisi pengembangan Radar kita:
    PT. LEN ama Thales = deal, setronk haha!πŸ’ͺπŸ’ͺπŸ’ͺ

    yg ini
    PT. Inti ama Northrop Grumman
    PT. CMI ama Lockheed Martin

    BalasHapus
  5. lanjutken haha!😁😁😁

    PT.LEN uda bikin Radar LEN S-200 daya jangkau 200KM uhuuyyy haha!πŸ˜‰πŸ˜‰πŸ˜‰

    Len Industri Kembangkan Radar Militer Daya Jangkau 200 Km
    https://nasional.sindonews.com/read/1350866/14/len-industri-kembangkan-radar-militer-daya-jangkau-200-km-1540994699

    kerja nyata bukan tempel stiker haha!πŸ˜‚πŸ˜‚πŸ˜‚

    BalasHapus
    Balasan
    1. eiit potonya ktinggalan haha!😁😁😁

      S-200, tinggal dikasi rudal, jadi dach arhanud, setronk haha!πŸ’ͺπŸ’ͺπŸ’ͺ

      https://3.bp.blogspot.com/-UDGMRl8xBpE/W9nE-GB1lRI/AAAAAAAA9s8/pfw_7bPLPgsFXaxMaCFd7NnegZbBeNguACLcBGAs/s1600/index-1.jpg

      Hapus
  6. LIPI kolab PT. INTI juga ada, ISRA wuiihh haha! setronk haha!πŸ’ͺπŸ’ͺπŸ’ͺ

    radar pantai
    https://2.bp.blogspot.com/-WmbFOmIcwIE/TblwuZllmZI/AAAAAAAAJIE/ia_fuKJ1VTs/s400/Isra_Defense%2BStudies.JPG

    https://2.bp.blogspot.com/-JUStSGVpzek/TbGTq2EDrLI/AAAAAAAAJEc/JspQNp8Psws/s400/ISRA_Defense%2BStudies.JPG

    BalasHapus
    Balasan
    1. masiii ada lagiii..

      radar maritim
      indera, mx-2 terpasang dikelas Parchim cink, setronk haha!πŸ’ͺπŸ’ͺπŸ’ͺ

      https://1.bp.blogspot.com/-IMLT55U1UpM/WYHygB-kCnI/AAAAAAAA0e4/4MXZ-7Q9mc85G0y87o8Ypy3vUkAEDwV5wCLcBGAs/s1600/img5161.jpg


      radar indera mx-3
      https://1.bp.blogspot.com/-CAIOltPGJ9U/WYHy6t2BusI/AAAAAAAA0e8/FR35WfOEWE42EoX4xtPIy9myy_aaKCu-wCLcBGAs/s1600/img5163.jpg

      radar indera mx-4, x-band radar kesukaan om smilikity haha!πŸ˜‰πŸ˜‰πŸ˜‰
      https://4.bp.blogspot.com/-gk7pXmIvoMk/WYJbLT_tXhI/AAAAAAAA0fU/AqhQhWIGWf0NHpvfOtl5yJsbG8LKSpWXACLcBGAs/s1600/MX4.png

      Hapus
  7. REFERENDUM FOR SABAH AND SARAWAK

    BalasHapus
  8. Siapa bilang malon tak punya radar...???lha wong mereka tahu keberadaan posisi bea cukai,polisi peraitan,polisi bandara buat selundupkan dadah

    BalasHapus
    Balasan
    1. Kemarin 2 malonyetjing ketangkap sama polisi perbatasan Australia, seludupkan bahan baku pembuat shabu shabu sampai 1 ton

      Hapus
    2. Radarnya rusak berarti bro JJ

      Hapus
  9. MALINGSIA "JEALOUS"..KOH..KOH..KOH

    BalasHapus
  10. Tak payah malaysia bina macam nie,punya ausie punya malaysie juga

    BalasHapus
    Balasan
    1. Istri kau digilir bergantian dengan aussie juga

      Hapus
    2. Bina pakai daun kah....Wang tak de..😁

      Hapus
    3. Prinsip Australia, punya malon punya Australia tapi punya Australia bukan punya malon

      Hapus
    4. Istri malon bisa digilir siapa saja asal sama sama negara commonwealth

      Hapus
  11. IDIOT INDONS FIRE HAZE AFFECTS NEIGHBORING NATION.
    SMOKE BEALCHER!

    BalasHapus
  12. Balasan
    1. Otak di lutut kaki adalah typical beruk Malon Bumiputera yg tak akan mampu bersaing dgn suku bangsa pendatang, pasti terpinggirkan.

      Hapus
    2. Bangsa China, Bangla pelan tapi pasti akan berjaya merebut perpolitikan dan ekonomi di Malaysia. Raja raja malayu akan seperti puppet tak akan bisa berbuat banyak.tunggu tanggal mainnya kehadapan. Kihkihkih....

      Hapus
    3. Bangsa melayu malon melayu KW 3 bro...abal abal asli tapi palsu

      Hapus
  13. REFERENDUM FOR SABAH,ARAWAK AND JOHOR BAHRU

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  14. MALON!MALON! STUPID LOW MENTALITY MONKEYS

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  15. BERSEKUTU TAMBAH MUTU
    BERSAMA MALON BERUK MENCARU KUTU

    BalasHapus
  16. MALONS THE ONE AND ONLY FOREVER

    CHAMPIONS KING OF CLAIM

    NO.1 THE WORLD

    BalasHapus
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    BalasHapus
  18. Komentar ini telah dihapus oleh pengarang.

    BalasHapus
  19. Lon baca ini,,,malon tolol akut cuman bisa iri dengki 😝😜

    https://lancerdefense.com/2019/09/21/kerjasama-kai-dengan-pt-di/

    BalasHapus
  20. Lon kau carilah partner buat kembangkan teknologi drpada kau jadi bangsa gila,homo dan bodoh lon, itu klw ada negara yang mau kerjasama dengan bangsa bodoh macam kau looon

    BalasHapus
    Balasan
    1. Mereka kan sudah kerjasama dengan negara persemakmuran alih teknologi bidang biologis...istri istri malon biasa alih guna dipakai bergilir khusus anggota commoneealth...sebagai gantinya malon bisa guna teknologi canggih negara commonwealth

      Hapus
  21. Mohd Haafiz MELAYU... OH MELAYU Yang bawa kaum cina ke sini buka lombong timah... orang British. Yang bawa kaum india jaga ladang getah ke sini... orang British. Yang Benggali pula ikut orang British kesini jadi askar... Bila orang british balik negeri dia suruh India, Cina dan Benggali duduk sini elok2... British suruh Melayu buat macam adik beradik... Itu syarat beri merdeka... Melayu berlapang dada... Melayu beri kerakyatan kpd pendatang yang menumpang... Raja Melayu tanda tangan. Merdeka...! Merdeka...! Merdeka...! Cina India nak buat sekolah... Melayu kata buatlah... India nak buat kuil besar mana pun... Melayu kata buatlah... Cina tebang balak sampai botak hutan... Melayu kata tebanglah... Cina korek lombong timah sampai tinggal pasir. Melayu kata koreklah... Pasir lombong yang tinggal cina nak jual. Melayu kata juallah.. Tanah bekas lombong, cina nak ambil pajak sampai 999 tahun lamanya. Melayu kata ambillah.. India buat kumpulan gengster pun. Melayu kata tak apalah... Wakil rakyat India kata Melayu Celaka..! Melayu sabar diam aje... Wakil Rakyat Cina dan India kata Melayu pendatang..! Melayu senyum diam aje... Ahli Majlis Perbandaran buang tulisan Jawi ganti tulisan Cina. Melayu tak kisah buatlah... Hari ini Melayu nak Azan Subuh orang cina dan india bising bantah. Melayu tutup pembesar suara tak mahu jiran terganggu... Melayu diam sabar lagi... India kata khatankan anak perempuan islam jenayah, kelam kabut Menteri Melayu Buta Kayu nak tanya doktor..! Cina kata pondok tahfiz, perkauman, teroris Menteri Agama Melayu Pak Turut suruh tutup pondok tahfiz... Hati orang cina india wajib dijaga... Melayu diam lagi... Mereka buat semua itu sambil tuduh... Melayu rasis...! Melayu pelampau...! Melayu diam lagi... Hebat orang2 Melayu melayan... yang dulunya tetamu kini menjadi Tuan Rumah Bersama...! Esok2 entah2 mungkin tidak berumah lagi..! SEBENARNYA KITA BUKAN BERTOLAK ANSUR TAPI KITA DITOLAK BERANSUR-ANSUR...!!! FIKIR2KAN.... Ayuh bangkit lah... Org. Islam wajib bersatu Jgn jadi melayu kayu Dan layu.. SABAR ADA BATASAN SABAR JGN HINGGA. DIRI KITA TIADA TANAH UNTUK KITA

    BalasHapus
    Balasan
    1. Xaxaxaxaxaxaxaxaxa yg sdh merasa terancam kehidupannya yang nyaman xaxaxaxaxaxaxaxaxa hapus kan incert !!!!! Xaxaxaxaxaxaxaxaxa yuhhuuuu malon nih 🍌🍌🍌🍌🍌🍌🍌

      Hapus
  22. Rintihan bangsa malonyet yang terjajah di negeri sendiri ,mantap infonya bung jemawutπŸ‘

    BalasHapus