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 E series is another set of self-developed, safe and controllable domestic satellite communication products after D series. The system composed of it is based on the all-IP design, adopts TDM/MF-TDMA technology system, advanced distributed micro-service architecture and modular design, meets the needs of network construction of various scales, supports flexible networking communication modes and convenient network Expand to provide users with a more applicable satellite network.

Features:

· Support large-scale network

The system supports the network management capability of up to 200,000 end stations. Flexible network configuration, suitable for networks of various scales, especially suitable for industrial private networks and large-scale carrier-level networks.

· High channel efficiency

The system has extremely high channel efficiency, and the physical frame efficiency is as high as 98%.

· Flexible bandwidth policy

The bandwidth strategy implemented by combining multiple advanced technologies such as resource allocation algorithm and QoS improves channel utilization and takes into account the end-to-end delay to meet the business needs of dynamic traffic.

· Extensible modular design

Based on the industry's advanced distributed micro-service architecture and modular design, it supports smooth network expansion and helps users reduce network construction costs.

· Suitable for sudden business

The system supports millisecond-level seamless switching and 1-3 times lossless frequency hopping switching, and users have no perception of channel changes in burst services.

· Leading demodulation ability

The MF-TDMA backhaul demodulation threshold is as low as 3dB, which effectively improves system applicability and network robustness, and can cope with the impact of various harsh environments on link quality.

The E series system adopts TDM broadcast channel for forward signaling and business. The forward TDM carrier can support up to 32APSK modulation mode, and the information rate can reach 60Mbps (higher symbol rate can be customized). The return channel adopts MF-TDMA, supports QPSK/8PSK/16QAM modulation mode, and the single carrier information rate can reach 25Mbps. Support ACM , A UPC and other functions to ensure high stability of network operation.

The system supports upgrade and expansion of SCPC backhaul, supports up to 32APSK modulation mode, and the information rate can reach 60Mbps. Support carrier superposition technology under symmetrical bandwidth, effectively reduce the occupation of satellite bandwidth resources, and improve system communication efficiency.