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Tham khảo tài liệu 'satellite communications part 13', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Beyond life-cycle utilization of geostationary communication satellites in end-of-life 351 j. Receiving system noise temperature dBk 19.54 k.Antenna gain and noise temperature ratio dB k 34.16 l. Antenna tracking capability Automatic m. Antenna type Fixed C. Space loss 1. Uplink Rain Attenuation dB 0.5 2. Downlink Rain Attenuation dB 0.3 3. Uplink free space attenuation dB 200.50 4. Downlink free-space attenuation dB 195.51 5. Uplink polarization loss 3.00 D. Carrier Parameters 1. Carrier Type DSSS 2. Multiplexed mode CDMA 3. Modulation BPSK 4. Data Rate bps 50 5. Chip rate kbps 2047.00 6. Spreading frequency gain 46.12 7. Carrier Noise Bandwidth khz 2800.00 8. Carrier allocated bandwidth khz 3000.00 9. Threshold Eb N0 dB 10.00 E. Link Budget 1. Uplink C T a. Ground station effective isotropic radiated power dBw 11.20 b. Uplink free space loss dB 200.50 c. Loss of antenna pointing dB 2.00 d. Antenna gain per square meter dB mA2 36.96 e. Satellite carrier flux density dBw mA2 -141.55 f. Transponder saturation flux density dBw mA2 -90.82 g. Carrier input backoff dB 50.73 h. Satellite antenna gain and noise temperature ratio dB k -2.00 i. Uplink C T dBw k -193.80 2. Downlink C T 352 Satellite Communications a. Satellite effective isotropic radiated power saturation dBw 36.00 b. Carrier Output backoff dB 44.73 c. Carrier Downlink effective isotropic radiated power dBw -8.73 c. Downlink carrier per channel effective isotropic radiated power dBw -19.52 d. Downlink free-space loss dB 195.51 e. Receiving antenna pointing error dB 0.30 f. Antenna gain and noise temperature ratio dB k 34.16 g. Downlink C T dBw -181.47 3. Co-channel interference C T dBw k -162.31 4. Inter-modulation interference C T dBw k -144.13 5. Satellite interference C T dBw k -131.90 6. Total C T and C N a. Total C T dBw k -194.05 b. Boltzmann constant dBw k-Hz -228.6 c. Receiver Noise Bandwidth dB-Hz 64.47 d. Total C N dB -29.92 e. Threshold Ebi N0 dB 10 f. Threshold C N dB -37.48 g. Link margin dB .
