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To fulfil the function test of PCM telecommand, BPSK telemetry, data transmission and payload data processing of deep space exploration autonomous systems, and to ensure the reliability of the autonomous system. Ground test equipment based on PXI & PXIe hybrid architecture was designed. According to the real function and interface of autonomous system, the ground test equipment was divided into...
Rapid satellite deployment is the primary goal of Space Plug-and-Play Architecture (SPA), the Appliqué Sensor Interface Module (ASIM) is necessary for Non-SPA compliant components to be converted into SPA compliant. Focusing on current ASIM not supporting power hot swap, a SPA-S (SpaceWire) ASIM with power hot swap capability was designed and developed. The FPGA was used to convert device-specific...
The simulation of the rmistors plays an important role in micro satellite thermal control subsystem test. The simulation generally adopts the programmable resistors. However, the traditional programmable resistor module designed with relay switching precision resistor technology has its disadvantages, e.g. Low integration and short lifespan. To overcome these shortcomings, the the rmistors simulation...
The satellite equivalent device is used to check the electrical interface of satellite ground power supply and distribution (PSD) test system and verify its functional correctness. Previous equivalent device is usually customized for particular satellite. A general equivalent device for satellite was designed and developed in this paper. Firstly, the design requirements and specifications of general...
A small simulator for AOS high-speed payload multiplexer is designed and implemented based on the idea of satellite hierarchical test, which will be used in the test for satellite data transmission subsystem. The simulator uses the FPGA as control center, including multi-input and multi-output LVDS and RS422 interfaces. It caches the received payload data using the large-capacity SRAM dual caching...
To meet the test requirements of a remote sensing satellite payload and data transmission system, the satellite payload data loader was designed and implemented based on the PXI & PXIE architecture. The payload data loader was divided into eight functional modules hierarchically with the modular design concept, such as high speed payload data simulators, low speed payload data simulator, payload...
Frequency sampling method is one of the usual methods in FIR digital filter design. In frequency sampling method the value of transition band samples are usually obtained by searching for table. However, the value obtained by searching for table can not be ensured to be optimal. In this paper a new application of differential evolution (DE) to frequency sampling method is introduced and its performance...
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