Modern Battlefield Technologies

Bajirao

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FOXBAT ALOK

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Israel show off a new generation of passive radar
source : https://defenceview.in/israel-show-off-a-new-generation-of-passive-radar/

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Israel introduced a new passive radar – PCL (New Passive Coherent Location System), covertly detecting and tracking aerial targets using analog FM broadcasting and digital audio broadcasting, without releasing any energy.


The detection principle is based on radio waves’ reflection from civil broadcasting towers in the analog and digital bands. Information about the new generation of passive radars was published by the Israeli company IAI Group in a press release.

Passive coherent radar systems (called “passive radar”) are variants of the bistatic radar in which the receiver and transmitter are separated. But the PCL variant does not use a transmitter at all – it uses “existing fixtures” as sources of radar transmission. These sources can be analog FM radio, cell phone base stations, digital audio broadcasting (DAB), and other sources.

Passive radar systems offer several key benefits. They are difficult to detect by conventional means: electronic sensors cannot pick them up because they do not transmit their own signals. They do not have transmitters that generate heat, so they cannot be detected by thermal signatures, and they are small and quite difficult to detect.

The new system is being developed by ELTA Systems, a subsidiary of the IAI Group. The new combination is available for deployment, providing real-time aerial monitoring with very high precision.





This passive radar system is easy to deploy and can be deployed in the field, in the border or urban areas. The installation will include one or more antennas for better coverage of monitored areas. In the case of multiple applications, they are connected to a single control center using a dedicated data link. Israel’s new generation passive radar will soon enter the world market, participating in direct competition with Kolchuga-M from Ukraine or Vera-NG built in the Czech Republic.

Israel Aerospace Industries (IAI) is a leading base in the development, manufacture, and modernization of products for the country’s the aerospace and aerospace industries. It is also a major enterprise in the global arms market.

A new passive coherent radar positioning system detects and tracks aerial threats based on target reflections from FM or Digital Audio Broadcasting (DAB) towers. Reflections are received by one or a network of antennas, providing real-time 3D tracking of multiple targets in busy air traffic conditions.
 

Owenkinross99

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Electronic sensors are key to battlefield dominance by armed forces, as information gathered about the enemy enables counter-measures and often, offensive action that change the course of a war. Radar is an electromagnetic sensor system used for detection, location tracking, imaging and classification of targets such as man-made objects like aircraft, ships, ground moving vehicles and natural environment including ground features and moving men.

It is an important sensor for the commanders' battle space awareness and for decision-making in a war scenario. Modern battle has transformed into network centric operations, with unified battlefields spread across multiple theatres of operation. With the advent of microelectronics, radio frequency management and unprecedented growth in processing power and computation, radar has transformed into a complex, advanced and intelligent sensor. Indian military, aspiring to be a global player, has been integrating emerging technologies to fine tune its strategies and tactics to integrate with global Armed Forces.

The battlefield scenario is continuously changing with sophisticated emerging technologies and therefore the operational environment of modern radar systems is becoming increasingly more complex. Stealthy, long-range, high altitude, high speed, manoeuvering targets, intense jamming environment, large fluctuations of radar cross-section with small change of aspect angle of targets, pose challenges for efficient detection, tracking, and measuring are all combined to ensure complexity of the task.

Radar is an acronym. Radar stands for Radio Detection and Ranging and is used extensively today for both military and civilian purposes. Radars were first used to achieve military objectives in the middle of the 20th Century - World War II to be precise. In India during the postindependent era, work on a radar for the armed forces began in the 1967-68 period at the Bengaluru-based Electronics and Radar Development Establishment (LRDE), a premier institution of the Defence Research and Development Organisation (DRDO).

The Battlefield Surveillance Radar– Short Range (BFSR-SR) is a lightweight, man portable, surveillance electronic sensor developed for the Indian Army. The radar can search a specified sector and performing track-while-scan (TWS) for multiple ground surface targets to provide all-weather surveillance against intrusion. BFSR is a fully coherent pulse Doppler radar. The low peak power provides the radar a low probability of intercept (LPI), making it difficult to intercept by enemy sensors. The radar algorithm incorporates Digital Pulse Compression Technology, which improves the LPI characteristics, provides adaptive RF power management based on the depth of surveillance, as well as making the radar capable of resolving closely spaced targets. The radar operates in all-weather conditions and during day and night.
 

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