Detection and Signal Processing: Technical Realization: 22 - Brossura

Witteman, Wilhelmus Jacobus

Brossura

ISBN 10: 3642067379 ISBN 13: 9783642067372

Casa editrice: Springer, 2010

Riassunto

Thesecondpartdealswithampli?cationproblemsandtherecovery ofrepetitivesignalsburiedinnoise. Thelastpartisdevotedtosolvingthe problemsconnectedwithreachingtheultimatedetectionlimitorquantum limit. Thisisdoneforheterodynedetectionandphotoncounting. Although VIII Preface heterodynedetectionyieldstheultimatesensitivity,itsspatialmodesel- tivityand,ingeneral,thelowspectralpowerdensityofthesignalrequire sophisticatedprovisions. Thisisdiscussedindetail. Theinherentproblemsare analyzedandappropriatetechnicalsolutionsaredescribedtoreachtheul- matesensitivityfordetectingincoherentradiationandcommunicationsignals thatarerandomlyDopplershifted. Theresultsareillustratedwithexamples ofspacecommunication. Hengelo(O),January2006 W. J. Witteman Contents 1 RandomFluctuations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1. 1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1. 2 ThermalNoiseofResistance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1. 3 ShotNoise. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1. 3. 1 SpectralDistribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1. 3. 2 Photons. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 1. 4 FlickerNoise. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 1. 5 Generation–RecombinationNoise. . . . . . . . . . . . . . . . . . . . . . . . . . 10 1. 6 ThermalRadiationandItsFluctuations. . . . . . . . . . . . . . . . . . . . 13 1. 7 TemperatureFluctuationsofSmallBodies. . . . . . . . . . . . . . . . . . 18 1. 7. 1 AbsorptionandEmissionFluctuations. . . . . . . . . . . . . . . 20 2 Signal–NoiseRelations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 2. 1 SignalLimitation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 2. 2 BackgroundLimitation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 2. 2. 1 IdealDetection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 2. 3 JohnsonNoise. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 2. 4 DarkCurrentNoise. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 2. 5 NoiseandSensitivity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 2. 6 Ampli?erNoiseandMismatching. . . . . . . . . . . . . . . . . . . . . . . . . . 28 3 ThermalDetectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 3. 1 ThermocoupleandThermopile. . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 3. 2 Bolometer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 3. 2. 1 MetallicBolometer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 3. 2. 2 Thermistor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 3. 3 PyroelectricDetector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 4 VacuumPhotodetectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 4. 1 VacuumPhotodiode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 4. 2 Photomultiplier. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 X Contents 5 SemiconductorPhotodetectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 5. 1 Photoconductors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 5. 1. 1 AnalysisoftheDetectionProcess. . . . . . . . . . . . . . . . . . . . 64 5. 1. 2 FrequencyResponse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 5. 2 Photodiodes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 5. 2. 1 P–NJunction. . . . . . . . . . . . . . . . . . . . . .

Su questo libro

L'autore:

W. J. Witteman has been professor in laser physics at the University of Twente (The Netherlands) from 1969 until 1999. Next to numerous articles in the field of CO2-lasers, excimer lasers and free electron lasers he has published:

In 1987 "The CO2 Laser" (Springer Series in Optical Sciences, Vol.54)

In 1996 as co-author "Gas Lasers-Recent Developments and Future Prospects" (Kluwer Academic Publishers)

In 2004 as co-author "Handbook of Laser Technology & Applications" (Institute of Physics Publishing). He was the author of the chapter on "Excimer, F2, N2 and H2 Lasers".

Dalla quarta di copertina:

This comprehensive monograph deals with detectors, signal processors and related noise phenomena. Detailed quantitative analyses are developed in a consistent format for thermal detectors, vacuum detectors, semiconductor detectors and avalanche detectors, as well as their accompanying noise currents. For signal processing applocations, the monograph treats in detail the operational amplifier, signal averagers, waveform analyzers, correlation techniques and heterodyne detection. Several original extensions are reported, especially for correlation devices and heterodyne detection with noise rejection. In addition, results of analyses are illustrated with examples of operating systems and of applications in space communication and laser radar.

Su questa edizione

• Editore: Springer
• Data di pubblicazione: 2010
• ISBN 10: 3642067379
• ISBN 13: 9783642067372
• Rilegatura: Copertina flessibile
• Numero di pagine: 188