Despite the GPS jamming: how did the Iranian missiles land here anyway?
It was an impressive image of victory against the Iranian barrage: 99% of the missiles and UAVs aimed at Israel were intercepted by the US, British and Israeli armies. During the day, the Israeli security system again activated the GPS jamming in order to prevent the missiles from landing on our territory, and still dozens apparently did penetrate the skies of Israel.How did they find their way to us anyway, with the GPS gone wrong, how do you mask the GPS, does it also affect neighboring countries and what happens to the passenger planes that have to navigate? With the help of Dr. Harel Manshari, one of the founders of the cyber system in the former Shin Bet, head of the cyber field at the Holon Institute of Technology and a lecturer at Tel Aviv University – all the answers to all the questions:

How does the missile navigation mechanism work?

Dr. Manshari explains that the missiles that landed here are ballistic missiles that do not need GPS systems. These missiles are aimed before launch and are fired in an arcing trajectory above the atmosphere and back to Earth until their destination. This is different from a hovercraft or cruise missile that rely on GPS systems, fly and change the Their direction is according to the route. Therefore, the GPS jams do not affect ballistic missiles with a pre-programmed trajectory. According to what is known, all the GPS-based missiles and UAVs that were fired at us were intercepted outside the country’s territory, and the trajectory of at least most of them was also jammed along the way.

What has landed in our territory anyway?

The successful interceptions depend on the interceptors being fired at them. After the missiles that penetrated our territory were hit, remnants of IDF interceptor missiles landed on the ground, and parts of the destroyed missiles. This is why the Home Front Command demands to remain in a protected area.

If the GPS is disrupted in Israel, how do our interceptors manage to work?

The interceptors work with other methods such as radar – a system that sends out radio signals that hit the bone, whether it is standing or moving. These signals return to the antenna located near the launch system that decodes the position. Thus the interceptors do not need GPS to navigate and intercept missile threats.

Is it possible to disrupt the cruise of a ballistic missile?

According to Dr. Manshari, the disruption of a ballistic missile is problematic: “It has its trajectory according to the pre-programmed engine timing and the direction of the fins, and after the missile’s engine stops working, the missile descends back to Earth and hits. Apart from intercepting it, it is difficult to disrupt its activity, therefore these are the missiles that did manage to get here, but were successfully intercepted because the IDF is also prepared against them.”

Why does the GPS actually show that we are in Cairo or the capitals?

The GPS system in Israel is an American system, the oldest of all GPS systems, which covers the entire planet. More limited parallel systems are the Russian, Chinese, Japanese, Indian system, and the European Galileo system. In principle, in order to navigate and know our position, it is necessary to cross signals from at least 3 satellites, and usually four.

There are two GPS jamming systems that have been known since the second Gulf War in 2003: one produces a very loud noise in a certain area, small or large, which completely disrupts GPS reception. The second system works by means of and imitation of the satellite signals: it transmits itself signals that “intersect” on other countries such as capitals or Cairo. These signals are stronger than the signals coming from the GPS, and they seem to show a simulated location in other countries.

Are the disruptions also triggered by neighboring countries?

Definitely. The Iranians also create GPS jams, especially in the Strait of Hormuz. Jordan itself activated GPS jamming over its airspace yesterday. “Actually every country knows how to activate GPS jamming.

Does the GPS also affect airplanes?

Airplanes do not rely only on GPS, but also on other navigation systems that include inertial navigation that includes sensors that measure acceleration, altitude, speed and time, and the radar systems of the control towers that are supposed to cover the entire flight path of a passenger plane, from takeoff to landing. During such a flight line that passes The plane, usually at an altitude of about 30,000 feet, above several control towers, each in its field ensures proper navigational control of the plane.

What to do if there are GPS jams on the cell phone?

Navigation: Before you leave by car, download the route in advance in the Google Maps application. Try to learn the way or save the detailed arrival route.

Notification apps: Type your location in the home command or red color apps instead of automatic detection. In the Home Front Command application, click on “+add an area of ​​interest”. In the Red Color app, go to “Settings” and select the localities from which you want an alert.

Food ordering apps: If you can’t cancel orders in the next few days, type your address. Make sure when ordering that the address is correct.

Dating apps: You should avoid using them if there is a location disturbance. Before entering the application, check with Wise, Apple or Google maps that your location is not disturbed.

By Editor

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