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首页> 外文期刊>Acta astronautica >BILSAT-1: A LOW-COST, AGILE, EARTH OBSERVATION MICROSATELLITE FOR TURKEY
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BILSAT-1: A LOW-COST, AGILE, EARTH OBSERVATION MICROSATELLITE FOR TURKEY

机译：BILSAT-1：土耳其的低成本，敏捷，地球观测微卫星

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TUBITAK-BILTEN has initiated a project to develop and propagate small satellite technologies in Turkey. As part of this initiative, TUBITAK-BILTEN is working with SSTL to develop a 100kg class enhanced microsatellite, BILSAT-1. With the successful completion of this project, TUBITAK-BILTEN will be capable of producing its own satellites, covering all phases from design to production and in-orbit operation. It is hoped that acquisition of these technologies will stimulate Turkish industry into greater involvement in space related activities. The project was started in August 2001 and will run through to February 2003 with launch scheduled for July 2003. BILSAT-1 will be one of the most capable satellites that SSTL have ever built and features several technologies normally only found on larger satellites. Specifically, the Attitude Determination and Control System of BILSAT-1 will be the most advanced that SSTL have ever flown: Dual redundant Star Cameras, sun sensors and rate gyros provide accurate and precise attitude information allowing a very high degree of attitude knowledge. Actuators on board will make the satellite extremely agile ― for instance, allowing fast slew manoeuvres about its roll and pitch axes. The agile control system also enables ground target revisit times to be reduced compared to nadir-pointing gravity gradient stabilized satellites, and will allow stereoscopic imaging, target tracking and multiple attitude imaging to be undertaken with the satellites prime payloads: a 4-band multispectral 26-metre GSD imaging system and a 12-metre GSD panchromatic imager. Also on board the satellite there are additional payloads, including a state-of-the-art Digital Signal Processing payload (GEZGIN) that will enable real time image compression in JPEG2000 format using a high performance floating point DSP, and a low resolution multi spectral (9-band) camera (COBAN). BILSAT-1 will also co-operate in the international Disaster Monitoring Constellation (DMC) led by SSTL, providing the ability to enhance the imaging capabilities of the constellation. In parallel with the microsatellite design and build activities, all the infrastructure required to design, produce and operate a satellite is being constructed at BILTEN's premises in Turkey. This infrastructure includes assembly and integration rooms, a PCB prototyping workshop, research and development laboratories, and a satellite mission control ground station.
机译：TUBITAK-BILTEN已启动一个在土耳其开发和传播小型卫星技术的项目。作为这项计划的一部分，TUBITAK-BILTEN正在与SSTL合作开发100kg级增强型微卫星BILSAT-1。随着该项目的成功完成，TUBITAK-BILTEN将能够生产自己的卫星，涵盖从设计，生产到在轨运行的所有阶段。希望获得这些技术将刺激土耳其工业更多地参与与太空有关的活动。该项目于2001年8月开始，一直持续到2003年2月，计划于2003年7月发射。BILSAT-1将是SSTL建造的能力最强的卫星之一，并具有通常仅在大型卫星上才能找到的几种技术。具体来说，BILSAT-1的姿态确定和控制系统将是SSTL迄今为止最先进的系统：双冗余星型摄像头，太阳传感器和速率陀螺仪可提供准确而精确的姿态信息，从而提供非常高的姿态知识。机上的执行器将使卫星具有极高的敏捷性-例如，允许绕其旋转轴和俯仰轴进行快速回转操作。相比于最低点重力梯度稳定的卫星，敏捷控制系统还可以减少地面目标的重访时间，并允许对卫星主要有效载荷进行立体成像，目标跟踪和多方位成像：4波段多光谱26米的GSD成像系统和12米的GSD全色成像仪。同样在卫星上，还有其他有效载荷，包括最先进的数字信号处理有效载荷（GEZGIN），它将使用高性能浮点DSP和低分辨率多频谱实现JPEG2000格式的实时图像压缩。 （9波段）相机（COBAN）。 BILSAT-1也将与由SSTL领导的国际灾害监测星座（DMC）合作，提供增强星座成像能力的能力。在微卫星设计和建造活动的同时，正在土耳其的BILTEN场所建造设计，生产和运营卫星所需的所有基础设施。该基础设施包括组装和集成室，PCB原型制造车间，研发实验室以及卫星任务控制地面站。

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