پیوند داده های رادیویی هوابرد در باند UHF FHSS

الزامات پیوند داده های رادیویی هوابرد:

باند فرکانس: فقط باند UHF (225مگاهرتز ~ 470 مگاهرتز) یا (320مگاهرتز ~ 470 مگاهرتز)

مرحله پریدن: 50~100mhz
FHSS rate: 500~1000 Hop/s
With IFS (Intelligent Frequency Selection)
And Anti-Jamming

Range Distance: 150~200km
Low Latency: 2~5 ms
RF output Power: 5~10w
رمزگذاری: AES256
Receive Sensitivity: -110 dBm

ورودی: 2xRS232 (max Baudrate: 115200bps)

Only Serial Data Input (No Video Interface)

حالت: Point To MultiPoint (1To10)

The GCS (Master) Connect Full-Duplex To 10 پهپاد (Clients)

The UAV fly simultaneously next to each other. as SWARM.

Working Voltage: 12-36V DC
Maximum acceleration: 4g
Airspeed: <1000 کیلومتر در ساعت
Without any GNSS , Wifi, BT

Requirment Number: 200~250unit

With STAR architecture, we don’t need mesh.

We want to control 10 Uav by one GCS, Every UAV has 2xRS232, in Ground side, we have 20xRS232, Point to MultiPoint only.

Airborne Radio Data Link System Requirements Summary

1. فرکانس & Modulation

  • Band: UHF (225–470 MHz) یا narrowed (320–470 MHz).
  • Hopping:
    • Step: 50–100 MHz.
    • FHSS Rate: 500–1000 hops/sec.
  • Anti-Jamming: Integrated with Intelligent Frequency Selection (IFS) for dynamic interference avoidance.

2. Performance Specifications

  • محدوده: 150–200 km.
  • Latency: Ultra-low (2–5 ms).
  • RF Power: 5–10 W.
  • رمزگذاری: AES256.
  • Sensitivity: -110 dBm (receiver).

3. Communication Architecture

  • حالت: Point-to-Multipoint (1 GCS ↔ 10 پهپادها).
  • Topology: STAR architecture (no mesh).
  • Duplex: Full-duplex between GCS (master) and UAVs (clients).
  • Swarm Operation: Supports 10 UAVs flying simultaneously in close proximity.

4. Interfaces

  • ورودی:
    • پهپاد: 2x RS232 per unit (max 115,200 bps).
    • GCS: 20x RS232 (aggregate for 10 پهپادها).
  • Exclusions: No video, GNSS, Wi-Fi, or Bluetooth interfaces.

5. Environmental & Operational

  • Voltage: 12–36V DC.
  • Robustness:
    • Withstands 4g acceleration and airspeeds <1000 کیلومتر در ساعت.
    • Operates in GNSS-denied environments.

6. Quantity

  • Units: 200–250 systems.

Key Design Highlights

  • Anti-Jamming & IFS: Critical for reliability in contested/swarm environments.
  • Low Latency: Enables real-time swarm control.
  • STAR Topology: Simplifies network management (centralized GCS control).
  • Legacy Compatibility: RS232 interfaces prioritize simplicity and backward compatibility.

This system is tailored forhigh-speed, امن, swarm-based UAV operations in challenging conditions.

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