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SNR versus Detection SystemsRadobs 39===================================================================== | AMATEUR OPTICAL SETI | Symphony File: 9106-001.WR1 | | SNR Versus Detection Systems | Scenario -----> Night Sky | |--------------------------------------|-----------------------------| | | Range A | | FIBERDYNE OPTOELECTRONICS | | | Copyright (c), 1991 | Microwaves | | | | |--------------------------------------|-----------------------------| | ETI Parameters | | |--------------------------------------| | | ENTER -----------------------------> | | | Wavelength, nm | 200,000,000 | | Star Temperature, K | 136,000 | | Range, L.Y. | 1.00E+01 | |--------------------------------------|-----------------------------| | Receiver Parameters | | |--------------------------------------| | | ENTER -----------------------------> | | | Diameter, m | 34.0 | | Atmospheric Transmission | 1.00 | | Antenna Efficiency | 0.70 | | Spectrometer Efficiency | NA | | Optical Quantum Efficiency | NA | | Heterodyning/Homodyning Efficiency | NA | | Local Oscillator Power, W | NA | | Polarizations | 2 | | Planckian/Fraunhofer Suppression, dB | 0.0 | | Sky Radiance, W/m^2.sr.nm | NA | | Optical Bandwidth, Hz | NA | | Electrical Bandwidth, Hz | 1.00E+00 | | Front-End Temperature, K | NA | | Front-End Noise Figure, dB | NA | | Photodetector Load, Ohms | NA | | Avalanche Gain, dB | NA | | Excess Avalanche Noise Factor | NA | | Dark Bulk Current, nA | NA | |--------------------------------------|-----------------------------| | Frequency, Hz | 1.50E+09 | | Apparent Stellar Magnitude | NA | | Planckian, W/m^2.Hz | 1.60E-32 | | Daylight Per Pixel, W/m^2.Hz | NA | | Total Detected Background Power, W | 5.07E-30 | | Responsivity, mA/mW | NA | | Effective Noise Temperature, K | 10.0 | |--------------------------------------|-----------------------------| | Graphing Parameters | | |--------------------------------------| | | ENTER -----------------------------> | | | Lowest Intensity, W/m^2 | 1.00E-20 | | Log. Intensity Increment | 5.0 | |======================================|=============================| | Received Intensity, W/m^2 | Signal, dBW | CNR, dB | |--------------------------------------|---------------|-------------| | 1.00E-20 | -171.97 | 46.63 | | 3.16E-20 | -166.97 | 51.63 | | 1.00E-19 | -161.97 | 56.63 | | 3.16E-19 | -156.97 | 61.63 | | 1.00E-18 | -151.97 | 66.63 | | 3.16E-18 | -146.97 | 71.63 | | 1.00E-17 | -141.97 | 76.63 | | 3.16E-17 | -136.97 | 81.63 | | 1.00E-16 | -131.97 | 86.63 | | 3.16E-16 | -126.97 | 91.63 | | 1.00E-15 | -121.97 | 96.63 | | 3.16E-15 | -116.97 | 101.63 | | 1.00E-14 | -111.97 | 106.63 | | 3.16E-14 | -106.97 | 111.63 | | 1.00E-13 | -101.97 | 116.63 | | 3.16E-13 | -96.97 | 121.63 | | 1.00E-12 | -91.97 | 126.63 | | 3.16E-12 | -86.97 | 131.63 | | 1.00E-11 | -81.97 | 136.63 | | 3.16E-11 | -76.97 | 141.63 | | 1.00E-10 | -71.97 | 146.63 | | 3.16E-10 | -66.97 | 151.63 | | 1.00E-09 | -61.97 | 156.63 | | 3.16E-09 | -56.97 | 161.63 | | 1.00E-08 | -51.97 | 166.63 | ===================================================================== ===================================================================== | AMATEUR OPTICAL SETI | Symphony File: 9106-001.WR1 | | SNR Versus Detection Systems | Scenario -----> Night Sky | |--------------------------------------|-----------------------------| | | Range D | | FIBERDYNE OPTOELECTRONICS | | | Copyright (c), 1991 | Heterodyne | | | Detection | |--------------------------------------|-----------------------------| | ETI Parameters | | |--------------------------------------| | | ENTER -----------------------------> | | | Wavelength, nm | 656.0 | | Star Temperature, K | 5,778 | | Range, L.Y. | 1.00E+01 | |--------------------------------------|-----------------------------| | Receiver Parameters | | |--------------------------------------| | | ENTER -----------------------------> | | | Diameter, m | 10.00 | | Atmospheric Transmission | 0.40 | | Antenna Efficiency | 0.70 | | Spectrometer Efficiency | NA | | Optical Quantum Efficiency | 0.50 | | Heterodyning/Homodyning Efficiency | 0.50 | | Local Oscillator Power, W | 1.00E-03 | | Polarizations | 2 | | Planckian/Fraunhofer Suppression, dB | 0.0 | | Sky Radiance, W/m^2.sr.nm | 0.00E+00 | | Optical Bandwidth, Hz | 1.00E+11 | | Electrical Bandwidth, Hz | 1.00E+00 | | Front-End Temperature, K | 300.0 | | Front-End Noise Figure, dB | 6.0 | | Photodetector Load, Ohms | 1.00E+05 | | Avalanche Gain, dB | 1.0 | | Excess Avalanche Noise Factor | 0.00 | | Dark Bulk Current, nA | 3.00E-01 | |--------------------------------------|-----------------------------| | Frequency, Hz | 4.57E+14 | | Apparent Stellar Magnitude | 2.2 | | Planckian, W/m^2.Hz | 5.47E-24 | | Daylight Per Pixel, W/m^2.Hz | 0.00E+00 | | Total Detected Background Power, W | 6.01E-12 | | Responsivity, mA/mW | 0.26 | | Effective Noise Temperature, K | 43,942 | |--------------------------------------|-----------------------------| | Graphing Parameters | | |--------------------------------------| | | ENTER -----------------------------> | | | Lowest Intensity, W/m^2 | | | Log. Intensity Increment | | |======================================|=============================| | Received Intensity, W/m^2 | Signal, dBW | CNR, dB | |--------------------------------------|---------------|-------------| | 1.00E-20 | -186.58 | -7.45 | | 3.16E-20 | -181.58 | -2.45 | | 1.00E-19 | -176.58 | 2.55 | | 3.16E-19 | -171.58 | 7.55 | | 1.00E-18 | -166.58 | 12.55 | | 3.16E-18 | -161.58 | 17.55 | | 1.00E-17 | -156.58 | 22.55 | | 3.16E-17 | -151.58 | 27.55 | | 1.00E-16 | -146.58 | 32.55 | | 3.16E-16 | -141.58 | 37.55 | | 1.00E-15 | -136.58 | 42.55 | | 3.16E-15 | -131.58 | 47.55 | | 1.00E-14 | -126.58 | 52.55 | | 3.16E-14 | -121.58 | 57.55 | | 1.00E-13 | -116.58 | 62.55 | | 3.16E-13 | -111.58 | 67.55 | | 1.00E-12 | -106.58 | 72.55 | | 3.16E-12 | -101.58 | 77.55 | | 1.00E-11 | -96.58 | 82.55 | | 3.16E-11 | -91.58 | 87.55 | | 1.00E-10 | -86.58 | 92.55 | | 3.16E-10 | -81.58 | 97.55 | | 1.00E-09 | -76.58 | 102.55 | | 3.16E-09 | -71.58 | 107.55 | | 1.00E-08 | -66.58 | 112.55 | ===================================================================== ===================================================================== | AMATEUR OPTICAL SETI | Symphony File: 9106-001.WR1 | | SNR Versus Detection Systems | Scenario -----> Night Sky | |--------------------------------------|-----------------------------| | | Range F | | FIBERDYNE OPTOELECTRONICS | | | Copyright (c), 1991 | Photon | | | Counting | |--------------------------------------|-----------------------------| | ETI Parameters | | |--------------------------------------| | | ENTER -----------------------------> | | | Wavelength, nm | 656.0 | | Star Temperature, K | 5,778 | | Range, L.Y. | 1.00E+01 | |--------------------------------------|-----------------------------| | Receiver Parameters | | |--------------------------------------| | | ENTER -----------------------------> | | | Diameter, m | 0.81 | | Atmospheric Transmission | 0.40 | | Antenna Efficiency | 0.70 | | Spectrometer Efficiency | 0.50 | | Optical Quantum Efficiency | 0.50 | | Heterodyning/Homodyning Efficiency | NA | | Local Oscillator Power, W | NA | | Polarizations | 1 | | Planckian/Fraunhofer Suppression, dB | 0.0 | | Sky Radiance, W/m^2.sr.nm | 0.00E+00 | | Optical Bandwidth, Hz | 1.00E+11 | | Electrical Bandwidth, Hz | 1.00E+00 | | Front-End Temperature, K | 300.0 | | Front-End Noise Figure, dB | 6.0 | | Photodetector Load, Ohms | 1.00E+04 | | Avalanche Gain, dB | 100.0 | | Excess Avalanche Noise Factor | 0.00 | | Dark Bulk Current, nA | 0.00E+00 | |--------------------------------------|-----------------------------| | Frequency, Hz | 4.57E+14 | | Apparent Stellar Magnitude | 2.2 | | Planckian, W/m^2.Hz | 5.47E-24 | | Daylight Per Pixel, W/m^2.Hz | 0.00E+00 | | Total Detected Background Power, W | 3.94E-14 | | Responsivity, mA/mW | 0.26 | | Effective Noise Temperature, K | 43,942 | |--------------------------------------|-----------------------------| | Graphing Parameters | | |--------------------------------------| | | ENTER -----------------------------> | | | Lowest Intensity, W/m^2 | | | Log. Intensity Increment | | |======================================|=============================| | Received Intensity, W/m^2 | Signal, dBW | SNR, dB | |--------------------------------------|---------------|-------------| | 1.00E-20 | -211.42 | -109.63 | | 3.16E-20 | -206.42 | -99.63 | | 1.00E-19 | -201.42 | -89.63 | | 3.16E-19 | -196.42 | -79.63 | | 1.00E-18 | -191.42 | -69.63 | | 3.16E-18 | -186.42 | -59.63 | | 1.00E-17 | -181.42 | -49.63 | | 3.16E-17 | -176.42 | -39.63 | | 1.00E-16 | -171.42 | -29.64 | | 3.16E-16 | -166.42 | -19.64 | | 1.00E-15 | -161.42 | -9.64 | | 3.16E-15 | -156.42 | 0.34 | | 1.00E-14 | -151.42 | 10.29 | | 3.16E-14 | -146.42 | 20.12 | | 1.00E-13 | -141.42 | 29.64 | | 3.16E-13 | -136.42 | 38.38 | | 1.00E-12 | -131.42 | 45.85 | | 3.16E-12 | -126.42 | 52.05 | | 1.00E-11 | -121.42 | 57.51 | | 3.16E-11 | -116.42 | 62.67 | | 1.00E-10 | -111.42 | 67.72 | | 3.16E-10 | -106.42 | 72.74 | | 1.00E-09 | -101.42 | 77.74 | | 3.16E-09 | -96.42 | 82.74 | | 1.00E-08 | -91.42 | 87.74 | ===================================================================== June 30, 1991 RADOBS.39 BBOARD No. 586 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Dr. Stuart A. Kingsley Copyright (c), 1991 * * AMIEE, SMIEEE * * Consultant "Where No Photon Has Gone Before" * * __________ * * FIBERDYNE OPTOELECTRONICS / \ * * 545 Northview Drive --- hf >> kT --- * * Columbus, Ohio 43209 \__________/ * * United States .. .. .. .. .. * * Tel. (614) 258-7402 . . . . . . . . . . . * * skingsle@magnus.ircc.ohio-state.edu .. .. .. .. .. * * CompuServe: 72376,3545 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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