Feral Jundi

Wednesday, October 6, 2010

Technology: RRS Staring Array Radar Takes LEDS To New Level

     Thanks to Eeben for sending me this one. I really like these technologies because they have the potential to save lives. It would also help to defeat the very simple weapon system called the rocket launcher (like the RPG), which is in use by many of today’s forces throughout the world. These systems can also be used to locate and neutralize teams that are attacking the vehicle. It is all about minimizing the effectiveness of the very low cost weapon systems being used by combatants throughout the world.

     Now could we ever see a day where private industry would have the financing necessary to buy these systems and put them on their armored transports? Maybe. The cost and effectiveness would be factors.  It is definitely something that should be presented to potential customers as a way to supplement the defense of their personnel and facilities. Imagine an LEDS 300 system on a tower or on a Casspir/MRAP?

     Currently, I know the military sports all types of sensors on vehicles these days, but the pinnacle of these types of systems is their ability to zap RPG’s in mid-air and destroy that stuff in a way that doesn’t hurt the dismounted troops nearby.  With an ultra-fast radar detection system, it will give the other systems on the vehicle time to make decisions and arm/launch whatever munitions is required. Hence why the RRS news is key here. I believe there are multiple countries trying to achieve the same goal with these systems, and I hope they are able to effectively accomplish the task. –Matt

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LEDS

The CV90 sporting LEDS 150. Note the staring array radars at the front corners and the two high speed directed launchers containing multispectrals smoke and Mongoose missiles to the rear of the remote weapon station.  

Reutech staring array radar takes LEDS to new level 

06 October 2010

By Leon Engelbrecht

Reutech Radar Systems (RRS) says its new frequency modulated continuous wave (FMCW) staring array radar can detect a rocket propelled grenade (RPG) launch within 5.2 milliseconds (ms) and can provide an accurate track within 14.3ms. A millisecond is 1000th of a second and a RPG, fired at 20 metres, takes roughly 187 to impact.

Similar staring array technology forms the core of the radar systems supporting the US Navy’s Aegis and the US Army’s Patriot air defence complexes.The cost of developing this technology in South Africa is not known, but RRS was awarded a R643 970 contract in July “to demonstrate a frequency modulated continuous wave ranging radar concept.” RRS last month said it has been working on staring arrays for the “past three years.”

Colonel Cobus van der Merwe (Retired), SAAB Electronic Defense Systems’ Product Manager for Land Self-Protection Systems told a recent precision weapons solutions conference that with the radar his company’s Land Electronic Defense Systems (LEDS) can detect a RPG within 5ms and calculate whether the RPG will hit or miss the carrier vehicle within a further 10ms. The active defence controller then determines the validity of the threat within a further 10ms before taking less than 50ms to compute an intercept. It then takes 10ms to launch and a further 50ms for the “effects deployment”.

RRS’ Peter Bradshaw in a separate presentation at the South African Precision Weapon Solutions Conference held at the Africa Aerospace and Defence (AAD) exhibition in Cape Town two weeks ago, added that 5.2ms for first detection amounted to a “worst-case scenario” for the radar. He added that once detected and confirmed, track updates were given every 1.3ms.

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Wednesday, May 5, 2010

Technology: California Ranchers Wield British Radar To Detect Illegal Border Crossers

   Thanks to Cannoneer #4 for sending me this, and this is an excellent addition to The Defense of Farms and Ranches post.  The other thing I like about articles like this, is it highlights exactly what works and what doesn’t work out there.  What these ranchers are dealing with, is a daily issue that has been going on for years.  An individual protecting his land will come across a multitude of ideas, and try everything under the sun to get a job done.  They will also be pushing that equipment’s lifespan to the limits, and all of this information about the products longevity and usefulness is vital to other end users and to the company that made it.

   Personally, I have not used this product, so I cannot endorse it. I also have no connection to the company, and this just came across my desk as something that was interesting.  If any FJ readers have experience with this equipment, I am sure the rest of the readership would be interested to hear about that-good or bad. –Matt

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Blighter B202

Calif. Ranchers Wield British Radar to Detect Illegal Border Crossers

December 2009

By Grace V. Jean

LONDON — Frustrated by trespassers attempting to cross into the United States illegally, ranch owners in southern California have purchased a British radar in an effort to protect their property and to help Border Patrol agents nab more intruders.

The Blighter B202 Radar, developed by Plextek Ltd., an electronics and communications design consultancy based near Cambridge, U.K., detects people walking or crawling through the rocky, hilly landscape from four kilometers away, says Nicholas Booth, manager of Blighter sales and marketing.

The man-portable, scanning radar is mounted on a tripod and runs on rechargeable lithium ion batteries. It has a 20-degree wide vertical elevation beam that permits the detection of targets in the distance as well as up close.

“You can see people walking up and down the mountain and on the plains at the same time,” says Booth.

Traditional radars would require tilting to cover the same area.

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