GPS interference technology is a technique that interferes or destroys GPS signals through specific means. Its main purpose is to prevent GPS devices from working properly or to reduce positioning accuracy. The following is a detailed explanation of GPS interference technology:

Principle:

The GPS system emits precise time and position information signals to the ground through satellites. The receiver determines its position by receiving signals from multiple satellites and calculating the propagation time of the signals.

The transmission frequency of GPS signals is low and weak. Easy to be affected by interference from other wireless devices, atmospheric conditions, or human factors.

Interference mode:

Transmitting interference signals:
Transmitting interference signals with the same frequency as GPS, preventing the GPS receiver from receiving satellite signals correctly. As a result, it is impossible to perform positioning or the positioning error increases.

Deceptive interference:
Sending false signals to mislead GPS receivers into receiving incorrect location information.

Impact of atmospheric conditions:
Under adverse weather conditions such as heavy rainfall, blizzards, etc., accurate signal propagation may be disrupted or attenuated, thereby affecting positioning accuracy.

Human factors:
In military operations, interference measures may be used to limit the enemy’s positioning capabilities. Some individuals or organizations may also use devices such as jammers to interfere with GPS signals.

Impact:

Impact on weapon systems:
For weapon systems that require precise strikes, such as the Hamas rocket launcher, GPS interference technology can lead to ineffective guidance accuracy, reduced strike effectiveness, and reduced range of damage.

Impact on ordinary GPS devices:
Causing the device to malfunction, resulting in decreased positioning accuracy, and even inability to perform positioning.

Response measures:

GPS equipment equipped with anti-interference technology:
Help devices filter out interfering signals and improve the accuracy and stability of GPS positioning.

Monitoring and combating GPS interference behavior:
Relevant departments should strengthen monitoring and crackdown on GPS interference behavior to maintain wireless communication order and security.

Example:

China has developed powerful GPS jamming systems, such as GPS jamming vehicles. The principle is to create a protective “bubble” in the central area above the car, covering a specific area.

The US military is developing innovative global positioning system anti-interference technologies. “GPS+INS+Pseudolites” aims to improve the anti-interference ability of GPS systems.

GPS interference technology is a technology that interferes or disrupts the propagation and reception of GPS signals by transmitting interference signals, utilizing atmospheric conditions or human factors, and has important impacts on military operations and civilian fields.