Low-Earth Orbit (LEO) Satellite Communication Simulation System

Satellite testing is crucial for ensuring reliability, performance, and longevity in space environments. It verifies resistance to extreme temperatures, radiation, and vibrations, preventing mission failures. Accurate testing enhances communication, navigation, and Earth observation applications, supporting industries like aerospace, defense, and telecommunications. Thorough validation minimizes risks and ensures mission success.

Our comprehensive satellite testing solution covers the entire satellite lifecycle and ensures precise performance validation and seamless communication system testing for modern satellite applications.

Communication Link-Level
Simulation System Overview

The communication link-level simulation system is used to simulate the operating environment of satellite communication links, enabling effective verification and testing of satellite payloads or ground terminals. The system supports various communication standards and provides comprehensive support for signal transmission, reception, and real-time analysis. It is suitable for communication payload algorithm validation, system testing, and performance validation of ground equipment.

Main Features

01
Communication Link Simulation

Satellite Link Simulation: Simulates the operation of the satellite payload, ground station, and user terminal to test satellite communication link performance.

Link Performance Analysis: Conducts comprehensive performance verification of different communication links, including signal quality, bit error rate, spectrum analysis, etc.

02
Supported Communication Standards

DVB-S2/DVB-S2X: Supports satellite broadcast standards DVB-S2/DVB-S2X for satellite communication link transmission and reception performance testing.

4G-LTE, 5G NR: Supports 4G LTE and 5G NR communication standards for mobile communication link performance testing and optimization.

03
Multiple Modulation Schemes Supported

Modulation Modes: Supports BPSK, QPSK, 8PSK, 16APSK, 32APSK, and other modulation schemes to meet various communication requirements.

Performance Metric Testing: Measures EVM (Error Vector Magnitude), bit error rate (BER/BLER), and spectrum analysis to ensure signal transmission accuracy andreliability.

04
Frequency Range Coverage

Ku, Q/V Bands: Supports a wide frequency range, including Ku band and Q/V band, ensuring coverage for different types of satellite communication systems.

05
Link-Level Simulation

FPGA Channel Simulation: Uses FPGA technology to simulate channel conditions, accurately emulating the effects of link fading, Doppler shift, signal delay, etc., to mimic real-world communication link conditions.

Link Attenuation Simulation: Simulates channel attenuation and interference under different environmental conditions, providing more realistic simulation test results.

06
Real-Time Signal Transmission and Reception

Signal Transmission: Generates and transmits signals that comply with different communication standards.

Signal Reception: Supports receiving signals transmitted from satellites or ground-based stations and monitors and analyzes the signal quality in real-time.

Real-Time Analysis: The system analyzes signal performance, link status, bit error rates, etc., in real-time to help test and optimize communication systems.

07
Extensibility and Secondary Development

Support for Secondary Development: Provides open interfaces and a development environment, allowing users to customize the simulation system according to specific needs.

System Expansion: Additional standards or simulation modules can be added to meet more testing requirements.

System Architecture

Simulation Modules

Includes transmitters, receivers, channel simulators, modems, etc., to fully simulate the entire satellite communication link.

Analysis Modules

Collects and analyzes simulation data in real time, including bit error rate, spectrum analysis, EVM, etc.

Control and Management

Provides an operating interface and monitoring system, allowing users to configure system parameters and view test results in real time.

This communication link-level simulation system offers high flexibility, scalability, and powerful testing capabilities, making it widely applicable for communication payload development, system integration, and performance verification under various communication link conditions.