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Five generations of the GOS PKR Concern "Granit-Electron"
Concern "Granit-Electron" started to create radar homing (GOS) in the late 50's of the last century. The first experience was gained in the development of homing missiles to P-6, designed for firing from submarines (submarine).
Shipboard equipment management system the P-6 was based on the type of remote control and solve the problem of flight control several missiles in a volley, and guidance for the purposes of RCC with radar viewfinder. Continuous operation of the radar sighting device and use it in a simple pulse sounding signal leads to some unmasking homing missiles and the vulnerability to the effects of jamming. But at the same time in that GOS was first solved the problem of combining a sector review of space radar sight with subsequent transition to maintenance mode targets for homing missiles. To do this, the GOS has been implemented the principle of monopulse tracking of targets, based on the amplitude and phase measurement of the angular deviation of each of the reflected pulse from the direction to reflective object.
In developing the GOS in the Group created a dynamic test facility (DIC), which ensured the loop simulation of the GOS and check monopulse method of target tracking in natural conditions was carried out on the aircraft-laboratory (SL). In the final stage mining GOS it entered standby mode, including automatic search, acquisition and tracking targets without operator assistance. Standby mode was less likely to combat missions, but allows the submarine after a rocket launch and enable GOS avoid possible detection by the enemy.
In parallel with working GOS ASM P-6 was carried out concern the creation of the GOS for the complex "Amethyst" - the first missile system with underwater launch cruise missile. In the CDP was implemented autonomous control system.
Under these conditions, an entirely new task was to select targets and the choice of the main objectives in the organized interference. Was found original and effective technical solution. The principle of selection is called "rope polygon": the group was selected after a review of the purposes of equidistance and most powerful purpose. This makes it very likely to choose the order in the large ships. In monopulse seeker applied the principle of target tracking. To improve noise immunity as a working was adopted more than a short-wave station centimeter than the GOS control P-6.
In the mid 60's of the last century in the Group started to develop second-generation seeker missile system P-500. This GOS developed further the principles of the GOS to PKR
P-6. In the GOS was significantly increased detection range, which allowed the prior capture and clarify the relative coordinates, to bring the CD independently, by dead reckoning coordinates in secret mode (off radiation). As a result, the CD could decline by a low altitude outside of the affected area and the ship's anti-aircraft secretly at high speed close to the attacked target. On final re-enabled radar sight and carried recapture the transition to auto tracking. This allowed the rocket, after overcoming its zone of fire enemy opposition, successfully implement self-direction up to hit.
To combat aircraft carrier compounds in the 70s of the last century was created missile "Granite". To increase its effectiveness in the onboard automatic control system (BASS) was implemented GOS third generation. GSN possible to carry out target distribution and tselenaznachenie in a volley of missiles without operator. This function is associated with a complex logic selection of targets for background noise, and with the assessment that the objectives given attributes, was implemented in the onboard digital computer (onboard computer), made for the first time on integrated circuits. Realized it algorithms based on game theory. Strategy of the organization and activities of fire burst of enemy anti-missile seen as a game of two partners. To address calculated so-called "pay-off function" selected conditions in which damage to the enemy will be maximized and their own losses ("payments") - minimal.
GOS ASM "Granite" after starting their own searches, selection and choice of object hit, and parameter estimation purposes with subsequent capture and homing to the selected target. In the electronic part of the GOS established multi-channel (active-passive) radar sighting, who works in passive mode (radio silence), provides search and discovery orders, increasing the secrecy of the GOS and the RCC in general midcourse flight. GOS ASM "Granite" has allowed to solve the problem of application of the enemy aircraft carrier connection maximum damage when its use of means of active jamming.
GSN KR "Yakhont" and GSN fifth generation with removable antenna device.
In the 80's of last century, concern began to create GOS fourth generation, to be used in a universal missile system "Onyx", having surface and submarine launched and implemented the principle of "shot - I forget." In this GSN number of new technical solutions. Use as a probe signal pulse phase-shift keyed to the restructuring of the carrier frequency of the sensing probe to a wide frequency range, the most effective in terms of anti-jamming, organically combined with the rest of the digital control system. This can significantly increase the detection range with designated antenna device dimensions and the same average power of the radiation and the simple pulse signals in the prior art. Detection range of class "cruiser" is not less than 50-70 km at extremely harsh weather conditions.
Board computer enables the processing of signals from the GOS, GOS mode control, the task of target selection in the concept, borrowed from the set of GSN "Granite", based on game theory, and issue commands to the missile control signals from the GOS with the level of enemy opposition. Regime introduced programmable height homing in the terminal phase of flight.
The export version of the GOS used in cruise missile "Yakhont" in Russian-Indian missile BRAHMOS, taken into service Indian Navy and Army.
Currently, concerns have developed GSN fifth generation, which significantly (several times) is superior in performance GOS fourth generation.
This seeker has two versions antenna device: power-driven and as a phased array (PAR). Comparative characteristics of GOS 5th generation GOS 4th generation:
- Reducing the amount of equipment in 2 times;
- Reduction of energy consumption by 2-3 times;
- Increasing range of the 2-fold;
- Increasing secrecy of 3 times;
- Expansion of the operating frequency range of 4-5;
- Increase the resolution of 8.
In GOS 5th generation sold synthetic aperture antenna selection of all types of active and passive noise, as well as protection of their impact on problem solving.