شبیه‌سازی بردار خورشید و بردار میدان مغناطیسی در آزمایش‌های سخت‌افزار در حلقه

نوع مقاله: مقالة‌ تحقیقی‌ (پژوهشی‌)

نویسندگان

1 - مجتمع دانشگاهی هوافضا، دانشگاه صنعتی مالک اشتر

2 دانشگاه صنعتی مالک اشتر

چکیده

 شبیه‌سازی شرایط محیطی برای حسگرهای تعیین وضعیت ماهواره یکی از نیازمندی‌های اساسی برای انجام آزمون‌های سخت‌افزار در حلقه سامانه تعیین و کنترل وضعیت ماهواره است. در این مقاله، طرح اجرا شده برای شبیه‌سازی بردار خورشید و میدان مغناطیسی زمین برای حسگرهای خورشیدی و مغناطیسی ارائه شده است. در این طرح با استفاده از یک شبیه‌ساز خورشید، یک مجموعه دو درجه آزادی برای تغییر وضعیت حسگر خورشیدی و یک سیم‌پیچ هلمهولتز سه‌محوری، شرایط مناسبی برای شبیه‌سازی محیط عملکردی حسگرهای تعیین وضعیت ایجاد شده است. نتایج اندازه‌گیری‌های حسگرها نشان دادند با استفاده از این مجموعه می‌توان بردارهای خورشید و مغناطیسی را بر اساس موقعیت مداری ماهواره و وضعیت آن در هر لحظه با دقت قابل قبولی شبیه‌سازی کرد. بنابراین این بستر آزمایش می‌تواند برای پیاده‌سازی بخش تعیین وضعیت در یک مجموعه سخت افزار در حلقه مورد استفاده قرار گیرد.

کلیدواژه‌ها


عنوان مقاله [English]

Sun Vector and Magnetic Vector Simulation for Hardware in the Loop Tests

نویسندگان [English]

  • amirhossein tavakoli 1
  • ali faghihi 2
  • S.Mohammad Mehdi Dehghan 2
چکیده [English]

Simulating environmental conditions for the satellite attitude sensors is a fundamental requirement of hardware in the loop tests of attitude determination and control subsystem. In this paper, a new design for simulating sun vector and magnetic vector is presented. The operating environment for attitude sensors is simulated using a sun simulator, a two-degree-of-freedom table for changing the attitude of the sun sensor, and a three-axis Helmholtz coil. The sensors measurements showed that with this setup, the sun and magnetic vectors can be created with an acceptable accuracy using the orbital position and the attitude of the satellite. So, the test bed can be used for attitude determination of hardware in the loop tests.

کلیدواژه‌ها [English]

  • Sun simulator
  • Helmholtz coil
  • Attitude determination
  • Sun sensor
  • Magnetometer

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