Interactive Aerospace Engineering and DesignMcGraw-Hill, 2002 - 356 страници This text contains an integrated bound-in CD-ROM, and has a strong emphasis on design. Its active visual approach and inclusion of space-orientated engineering make it an interesting examination of the aerospace engineering field. |
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Страница 223
... Antenna Uplink Downlink Omni- Directional Antenna Relay Satellites PCS # 1 PCS # 2 The antenna requires a signal that is powerful enough to be recognized by the electronics that decode the signal . Thus orbital altitude can be used to ...
... Antenna Uplink Downlink Omni- Directional Antenna Relay Satellites PCS # 1 PCS # 2 The antenna requires a signal that is powerful enough to be recognized by the electronics that decode the signal . Thus orbital altitude can be used to ...
Страница 224
... antenna . Antenna = omni - directional = directional Directional beam covers 1/5 the surface area of a sphere of radius " R " from an omnidirectional beam form ( ignoring transmission losses and signal attenuation through the atmo ...
... antenna . Antenna = omni - directional = directional Directional beam covers 1/5 the surface area of a sphere of radius " R " from an omnidirectional beam form ( ignoring transmission losses and signal attenuation through the atmo ...
Страница 240
... antenna , 17 m ( 55.7 ft ) 5,250 kg ( 11,576 lb ) launch 3,200 kg ( 7,056 lb ) in orbit 12.25 m aperture deployable satellite antenna Onboard digital signal processing ( DSP ) Digital beam - forming capability Obtain a near - global ...
... antenna , 17 m ( 55.7 ft ) 5,250 kg ( 11,576 lb ) launch 3,200 kg ( 7,056 lb ) in orbit 12.25 m aperture deployable satellite antenna Onboard digital signal processing ( DSP ) Digital beam - forming capability Obtain a near - global ...
Съдържание
A Brief History of Flight | 1 |
Introduction to Engineering | 20 |
Aerodynamics | 36 |
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