Flint said: “Over the past five to six years, GPS jammer has indeed been developed, and lasers have indeed provided you with powerful capabilities independent of GPS. "
In addition, about eight years ago, the government-authorized JDAM upgrade also required the kit to include an anti-spoofing module (SAASM) and an optional SAASM / anti-jamming receiver. Flint said that, like many weapons, the weapon also includes an inertial navigation system which is independent of GPS when launched at close range.
Flint said US Special Operations Command has deployed a laser version of SDB I. SDB I and JDAM are looking for coordinates in their base setup, although Boeing has adjusted the laser sensor initially deployed in JDAM and started testing it in SDB I in 2011.
Recently, the company is developing improved GPS tracking software, which will be tested this year. Flint said its multi-element antenna is designed to allow bombs to better capture GPS signals even during jamming attempts, and that it will be tested within a year or two.
In order to find GPS accuracy in areas where there is no signal, Boeing is developing a navigation system capable of identifying stationary targets in the images. A pilot or other operator can send, for example, a photo of a group of buildings and specify which buildings the bomb should hit.
Flint said, “We are using the electronic technology revolution to solve some of these problems, so it's certainly a contrast between spies and spies. "
Simon said Rockwell Collins (Rockwell Collins) has a four element antenna for JDAM, the Integrated GPS Jammer System (IGAS). Twenty years ago the antenna was single mode and picked up analog signals, but the controlled receive mode antennas produced by Rockwell Collins and Raytheon were made up of up to seven elements, controlled by digital antenna electronics.
Commercial GPS typically operates on the L1 frequency, while the military also operates on the L2 frequency and can be encrypted on two frequencies. Even if there is no built-in anti-jamming function, this function can protect military GPS equipment. Products like IGAS are designed to provide more protection.
In order to fight against obstacles on the battlefield, the SDB II built by Raytheon for the Air Force uses a three-mode finder: millimeter wave radar to detect and track targets through time, infrared imagery to improve target discrimination, and semi-active to activate weapons Follow the laser from one or more airborne laser pointers on the ground.