anti jamming radio for drone

A client asks us to offer the anti jamming radio for his drone.

Yksi anti-jamming radio is a communication system designed to resist or mitigate interference (jamming) from external sources, ensuring reliable and uninterrupted communication. Jamming is the deliberate or unintentional disruption of radio signals, which can render a communication system ineffective. Anti-jamming radios are critical in applications where reliable communication is essential, such as in military operations, drone control, aviation, and critical infrastructure.

For the anti-jamming data radio link of drones, Luokittelemme sen pääasiassa yksisuuntaisen ja kaksisuuntaisen lähetyksen mukaan, ja tarjota erilaisia ​​vaihtoehtoja ja ratkaisuja.

Jos se on kaksisuuntainen lähetys, ratkaisumme on tarjota laajempi taajuusalue, Otsikkokoodi Vcan1988, joka tarjoaa 1300-1500 MHz, taajuusalueella 200Mhz, ja TX900 voi tarjota myös 1420-1530Mhz, taajuusalueella 110Mhz. Kun signaali häiriintyy ja SNR-herkkyys laskee, järjestelmä valitsee automaattisesti taajuuden, jolla on voimakkain virtasignaali, esimerkiksi, automaattisesti hyppäämällä 1300Mhz:stä 1500Mhz:iin samaan aikaan.

Jos asiakas haluaa käyttää cofdm yksisuuntaista tiedonsiirtojärjestelmää, mutta haluaa myös dronin datalinkin kestävän häiriötä, strategiamme on käyttää eri taajuuksia ylös- ja alaslinkille.

This ensures that even if there is a drone anti-gun on the ground that interferes with the drone’s downlink and the video download is interfered with, the drone operator can still use different frequencies to control the drone to fly to a safe area or return smoothly.

Meidän 1816 moduuli can achieve uplink and downlink using different frequencies. Tietenkin, we can also add power amplifiers, filters and antennas to make a finished anti-interference drone data link or repeater for you.

How Anti-Jamming Radios Work

Anti-jamming radios use a combination of hardware and software techniques to maintain communication integrity in the presence of interference. Here are the key methods they employ:

  1. Frequency Hopping Spread Spectrum (FHSS):
    • The radio rapidly switches frequencies within a predefined band during transmission.
    • Vaikka jammer häiritsee yhtä taajuutta, radio siirtyy nopeasti toiseen, mikä vaikeuttaa häirinnän estämistä koko signaalin.
    • FHSS soveltuu vain kaksisuuntaisiin drone-datalinkkeihin, koska yksisuuntaisen drone-datalinkin vastaanotin ei voi palauttaa nykyistä SNR:ää droonilähettimeen ja säätää toimintataajuutta samalla kun se havaitsee heikon signaalin droonilähettimestä.
  2. Suoran sekvenssin hajaspektri (DSSS):
    • Signaali levitetään laajemmalle kaistanleveydelle käyttämällä ainutlaatuista koodia.
    • Tämä saa signaalin näyttämään häirintälaitteen taustameluna, joka ei voi helposti häiritä koko leviämissignaalia.
  3. Ortogonaalinen taajuusjakoinen multipleksointi (OFDM):
    • Signaali on jaettu useisiin pienempiin osasignaaleihin, jotka lähetetään samanaikaisesti eri taajuuksilla.
    • Jos yksi taajuus on jumissa, the others can still carry the data.
  4. Beamforming and Suunta -antennit:
    • The radio focuses its signal in a specific direction, reducing the likelihood of interference from other directions.
    • This is particularly useful for long-range communication.
    • Currently there is a product that combines a directional antenna and an omnidirectional antenna in one, which is very useful when your receiver is a dual-channel diversity receiver.
    • The directional antenna can automatically adjust the direction of the directional antenna to always point to the position of the drone, we call it automatic antenna tracker. And there is also a manual adjustment of the direction and angle of the directional antenna. It is suitable for users with limited economic budgets. Video at https://youtu.be/egMqAVlDYyo
  5. Error Correction and Redundancy:
    • Advanced error correction algorithms (ESIM., Eteenpäin virheen korjaus) are used to detect and correct errors caused by interference.
    • Redundant data transmission ensures that even if part of the signal is lost, the message can still be reconstructed.
  6. Encryption and Authentication:
    • Encrypted signals are harder to jam or spoof, as the jammer cannot easily interpret or replicate the signal.
    • Authentication ensures that only authorized devices can communicate with the radio.
    • Our two-way and one-way drone systems already support digital AES128 for encryption and decryption.
    • We also have analog video scrambling modules and descrambling modules for FPV drones. Vcan2028.
  7. Adaptive Power Control:
    • The radio adjusts its transmission power dynamically to overcome interference or maintain a strong signal-to-noise ratio.

Applications of Anti-Jamming Radios

Anti-jamming radios are used in environments where communication reliability is critical:

  • Military and Defense: Secure communication in contested or hostile environments.
  • Drones and UAVs: Ensuring control and telemetry links remain intact, even in areas with heavy interference.
  • Aviation: Protecting communication and navigation systems from interference.
  • Critical Infrastructure: Safeguarding communication in power grids, kuljetus, and emergency services.
  • Space and Satellite Communication: Maintaining links in environments with high levels of interference.

Key Features of Anti-Jamming Radios

  • Resistance to Interference: Ability to operate in environments with high levels of electromagnetic noise or deliberate jamming.
  • High Reliability: Ensures continuous communication even under adverse conditions.
  • Pitkän kantaman: Capable of maintaining strong signals over long distances.
  • Alhainen viiveaika: Minimal delay in communication, crucial for real-time applications like drone control.
  • Secure Communication: Encryption and authentication to prevent unauthorized access or spoofing.

Examples of Anti-Jamming Technologies

  1. GPS Anti-Jamming:
    • Protects GPS signals from being jammed, ensuring accurate positioning and navigation.
    • Used in military drones, aircraft, and vehicles.
  2. Military Tactical Radios:
    • Radios like the AN/PRC-117G tai AN/PRC-158 use advanced anti-jamming techniques for secure battlefield communication.
  3. Drone Communication Systems:
    • Systems like DJI OcuSync tai TBS Crossfire use FHSS and other techniques to ensure reliable control and video transmission.
  4. Satelliittiviestintä:
    • Anti-jamming systems protect satellite links from ground-based or space-based interference.

Why Anti-Jamming Radios Are Important

In today’s world, where wireless communication is ubiquitous, the risk of interference—whether accidental or intentional—is high. Anti-jamming radios ensure that critical systems remain operational, even in the presence of interference. This is especially important for drones, where losing control due to jamming could lead to accidents, data loss, or security breaches.

If you’re looking for an anti-jamming radio for your drone, consider the operating environment, range requirements, and the level of interference you expect to encounter.




Esitä kysymys

← Takaisin

Viestisi on lähetetty