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Abbravation: Annales Geophysicae

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Copernicus GmbH

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10.1002/qua.22940

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0992-7689

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Methods of detection and estimation errors in ST r

Authors: Ferrat S Crochet M
Publish Date: 1994/05/31
Volume: 12, Issue: 6, Pages: 489-496
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Abstract

Abstract The classical theory of detection using the NeymanPearson principle is applied to stratospheretroposphere ST radar signals It is extended to provide information regarding the detection of weak signals which complements the detectability method usually employed in ST radar studies It is shown that for ST radar signals of low amplitude and a detectability around 3 a value commonly invoked in literature the probability of detection is about equal to the probability of false alarm The question of threshold detectability is also discussedSpectral moments errors are evaluated by a method which is an extension of the analytical method of estimation developed by Miller and Rochwarger and the results compared to other statistical and analytical models As already known three factors can affect the error on the estimated parameters the signaltonoise ratio the spectral width and the incoherent integration number For high signaltonoise ratios analytical results are in good agreement with Barricks and Denenbergs theoretical models and with Yamamotos statistical one For low signaltonoise ratios the spectral parameters are more sensitive to the selected model but overall variability is similar


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  1. Equatorial ionospheric response to isolated auroral substorms over a solar cycle (1980−85): evidence of longitudinal anomaly
  2. The relationship between VHF radar auroral backscatter amplitude and Doppler velocity: a statistical study
  3. Long-period fading in atmospherics during severe meteorological activity and associated solar geophysical phenomena at low latitudes
  4. A statistical analysis for pattern recognition of small cloud particles sampled with a PMS-2DC probe
  5. Inversion, error analysis, and validation of GPS/MET occultation data
  6. Electron cyclotron waves in the presence of parallel electric fields in the Earth's auroral plasma
  7. Simultaneous observations of the 2-day wave at London (43°N, 81°W) and Saskatoon (52°N, 107°W) near 91 km altitude during the two years of 1993 and 1994
  8. Low frequency waves in plasmas with spatially varying electron temperature
  9. A generation mechanism for chorus emission
  10. MUREX: a land-surface field experiment to study the annual cycle of the energy and water budgets
  11. Observations of long-lived solar wind streams during 1990-1993
  12. On the prediction of solar activity using different neural network models
  13. ELF wave generation in the ionosphere using pulse modulated HF heating: initial tests of a technique for increasing ELF wave generation efficiency
  14. Comparison of F-region electron density observations by satellite radio tomography and incoherent scatter methods
  15. An overview of a heavy rain event in southeastern Iberia: the role of large-scale meteorological conditions
  16. Cooling rate of thermal electrons by electron impact excitation of fine structure levels of atomic oxygen
  17. The structure and origin of magnetic clouds in the solar wind
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