Könyv Direct Sensor-to-Satellite Links Mohammad J. Al Saleh

Direct Sensor-to-Satellite Links

Sensor Package Analysis and Simulation for Direct Sensor-to-Satellite Links

Nyelv: Angol
Kötés: Puha kötésű
Elérhetőség: Kiadói készleten rendelésre
Küldés 17-27 napon belül
17 211 Ft
This book investigates the design and the §performance of low-power microsensors that §communicate d...

Információk a könyvről

Nyelv
Angol
Kötés
Könyv - Puha kötésű
Kiadva
2009
oldal
96
EAN
9783639138801
Enbook ID
06822531
Súly
159
Méretek
150 x 220 x 6

Teljes leírás

This book investigates the design and the §performance of low-power microsensors that §communicate directly to a satellite or a §constellation of satellites. Information is spread §using pseudo noise (PN) or Barker codes. The sensors §use a single circular microstrip patch element with §a wide beamwidth or a miniature phased array antenna §that continuously scans to access the satellite(s). §The array beam is controlled with a beam-forming §network (BFN), which contains 3 or 4-bit phase §shifters, which can be made in micro-electro-§mechanical systems (MEMS) or in monolithic microwave §integrated circuits (MMIC). The antennas are §designed using array simulation program §called ARRAY and the results are used in another §simulation program called Advanced Design System §(ADS) to simulate the whole sensor package that uses §one of the antennas. The simulation results show §that a sensor as small as 2.35 cm in diameter is §able to send information with data rate of 1 kbps at §bit error rate less than 0.00001 to low-earth orbit §(LEO) satellites with a transmitted power of 27.5 §microwatts (-15.6 dBm).

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