System Overview:

Spacebroad is a brand of satellite communication system independently developed by Andy Technology. It has completely independent intellectual property rights. It is divided into two product series, D and E, corresponding to the two technical systems of FDMA and TDMA respectively. The system is mainly composed of network management system, central station modem equipment, protocol processor and end station modem. End station equipment includes standard rack type, modular type, high-environment customized models and other forms, which can meet the installation requirements of various information computer rooms, vehicle-mounted, airborne, ship-mounted and field environments.

Spacebroad D is an SCPC/MCPC/DAMA satellite communication system based on the Frequency Division Multiple Access (FDMA) system, and its overall performance index has reached the international advanced level. Andy Technology took the lead in realizing domestic independence and safety and controllability at all levels of hardware, air interface, interaction protocol and network management system.

The system has rich and comprehensive functions, supports star, tree and mesh network architecture, advanced automatic operation and humanized management, and provides users with a scalable, flexible and configurable satellite transmission network. It is suitable for military, petroleum, electric power, earthquake, public security, civil air defense, telecom operators, government emergency and other fields with business requirements such as broadband communication and private network applications.

The D series has two sets of independent master products, D2S supporting standard DAMA and D3S supporting high-efficiency DAMA, which are suitable for different application scenarios. In the high-efficiency DAMA mode, the technology of separating signaling and services is adopted to effectively improve network management flexibility and channel resource utilization, and meet users' diverse network topology requirements.

Standard DAMA :

Efficient DAMA :

The transmission bandwidth of the D series master station modem reaches 40Mbps, which is 20% higher than the industry level; the demodulation threshold is as low as 2.0dB, and the signal processing capability is significantly better than the domestic application requirements. It has high equipment integration and stand-alone processing capability. For example, the central station equipment D2S/D3S has signaling sending and receiving channels and multi-service receiving channels; DTRU stand-alone has 4 receiving channels.

Based on the integrated system of TDM/MF-TDMA and FDMA, the E series is another completely independent and controllable domestic satellite communication platform based on IP design after the FDMA system, and has the advantages of both TDMA and FDMA technology systems. The system has extremely high physical frame efficiency (98%), advanced resource allocation strategy, lossless frequency hopping switching and other technologies. Its advanced distributed micro-service architecture and modular design support flexible networking communication mode and convenient network Expansion, suitable for network construction of various scales, providing users with more economical and flexible satellite network solutions. In one system, it not only meets the needs of large-scale burst data service transmission, but also flexibly supports continuous large-flow data services.