36 results about "Identification friend or foe" patented technology

A combat IFF system, for use in a combat exercise or on the battlefield, including a helmet-mounted passive IFF response unit and a weapon-mounted IFF interrogatory unit for each soldier. Infrared (IR) signals are employed for both challenge and response. The IR response signal is a very narrowly-targeted reflection of the relatively narrow IR transmit signal, thereby minimizing interception opportunities. The transmit and response signals are encoded in a transaction that cannot be compromised even when either or both signals are intercepted and decoded by the enemy. The combat IFF system includes biometric anti-spoofing features that prevent any use by an enemy in possession of captured units. Military radio-frequency (RF) spectrum is not required so there are no bandwidth limitations on simultaneous IFF transactions in the battlefield. A combat IFF transaction is completed in milliseconds.

Combined IR-RF combat identification friend-or-foe (IFF) system for a ground targets, such as dismounted soldiers, vehicles or military platforms comprising IR-RF interrogator mounted on a firearm and IR-RF transponder mounted on a friendly target. RF channel operates in Ka-band providing brief information about friendly targets that could be in attacked area, and if they are, develop alert signal: “Friendly soldiers are in the area”. The interrogator additionally contains RF channel receiving reflected signal that allows recognize armed foe. IR channel of the system prevents friendly fire in the case of direct sighting to a friendly soldier.

The invention relates to an airspace defense method and an air floating mine thereof. In the method, a transparent hydrogen balloon or helium balloon matched with a high-energy miniature bomb is arranged in a fortified airspace. The bomb is matched with a self-destroying device of clock control or controller control for spontaneous explosion mine removal, and is matched with an identification friend or foe system to prevent bombing error. The air floating mine comprises the transparent hydrogen balloon or helium balloon matched with the high-energy miniature bomb, and the balloon is matched with a height maintaining system. The method has the advantages of low cost and easy defense organization, can effectively block or inhibit the air power of the enemy, and is particularly suitable for a side with weak air power for defending against the invasion of an enemy with strong air power. The floating mines can be set at high density in a large scale by rockets or missiles or planes, and continuously float in a certain airspace for attacking an air target of the enemy colliding or approaching the floating mines, thus achieving the purposes of forcibly blocking or inhibiting the air power of the enemy by low cost and safeguarding the mastery of the air.

The invention discloses a method of carrying out fusion processing on SSR navigation management and IFF multi-mode cooperation track. A clear and reliable air monitoring graph can be supported to generate and civil air and an out target monitoring and identification capability can be increased. A technical scheme is characterized by in a secondary monitoring radar SSR navigation management and identification friend or foe recognizer integration system, firstly, carrying out trace point merging and track starting on data of A, C and S general calling mode targets of an SSR navigation management mode; secondly, carrying out prediction and roll-call inquiry on an S general calling mode track so that the SSR navigation management acquires a roll-call track of the S mode; according to a target point track angle, calculating a belonging area number, carrying out relation determination on SSR navigation management target tracks in the same area and an adjacent area and generating a target track after the SSR navigation management and the IFF are fused; and then associating and fusing attributes and positions of target data under different IFF guiding modes and the target tracks of the AC and S modes of the SSR navigation management and forming an SSR navigation management and IFF fusion target track so that continuous monitoring and identification to an air target are realized.