A holographic radio camera technique for the three-dimensional reconstruction of ionospheric inhomogeneities

Stone, W. Ross

doi:10.1016/0021-9169(76)90152-5

Cited by 8 publications

(2 citation statements)

References 15 publications

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“…NRL HF high resolution sounder data for a I-hop, F2 layer mid-Iatitude path -quiet conditions, transmitter pulse width = I s, signal bandwidth was I MHz. A more sophistieated type of holographie radio eamera was developed by Stone (1976Stone ( ,1978 using a 32element linear antenna array perpendieular to the satellite path whieh had the eapability of three-dimensional reeonstruetion. A more sophistieated type of holographie radio eamera was developed by Stone (1976Stone ( ,1978 using a 32element linear antenna array perpendieular to the satellite path whieh had the eapability of three-dimensional reeonstruetion.…”

Section: Ionospheric Imaging By Radiomentioning

confidence: 99%

Radio Techniques for Probing the Terrestrial Ionosphere

Hunsucker¹

1991

Physics and Chemistry in Space

107

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Section: Ionospheric Imaging By Radiomentioning

confidence: 99%

Radio Techniques for Probing the Terrestrial Ionosphere

Hunsucker¹

1991

Physics and Chemistry in Space

107

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“…All these considerations point to the need for finding solutions of the inverse problem of deterministic retrieval of ionospheric phase variations, caused by the irregularities, from scintillation data. In the past, simultaneous phase and amplitude measurements have been utilized in the reconstruction of ionospheric irregularities by inverse propagation using Fourier optical techniques similar to those involved in holography [Schmidt and Tauriainen, 1975;Stone, 1976;Liu and Ych, 1980;Tauriainen, 1982]. With these techniques it is possible to obtain the wave field distribution at the bottom of the irregularity slab.…”

Section: Introductionmentioning

confidence: 99%

Deterministic retrieval of ionospheric phase screen from amplitude scintillations

Bhattacharyya¹

1999

Radio Science

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Abstract. In the phase screen theory of ionospheric scintillations the ionospheric irregularities are considered as pure phase objects, and the diffraction pattern produced on the ground, by radio waves propagating through this phase screen, is obtained from conventional Fresnel diffraction theory. In the present paper the inverse problem of retrieving phase variations in the screen from the diffraction pattern on the ground is treated by using the transport-of-intensity equation (TIE), which is derived from the Fresnel diffraction theory result. An approximate version of the TIE is solved to obtain the phase variation in the screen from the intensity distribution on the ground. It is seen that when the phase variations involve spatial scale lengths ,,,400 m, phase fluctuations of •,5 tad can be recovered from intensity variations on the ground, for a 300-MHz signal. For larger spatial scale lengths and higher frequencies this method can be used to retrieve larger phase variations in the screen.

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Investigations of the ionosphere by satellite radiotomography

Куницын¹,

Andreeva²,

Tereshchenko³

et al. 1994

Int J Imaging Syst Tech

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An overview of tomographic approach to remote sensing of ionosphere by radio waves is presented. Various methods, including diffraction, statistical, and ray radiotomography are discussed. The experimental procedures of satellite radiotomography are described. Results from satellite experiments in [1984][1985][1986][1987][1988][1989][1990][1991][1992][1993] are shown demonstrating the great possibilities of the radiotomographic method in ionospheric research.

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A holographic radio camera technique for the three-dimensional reconstruction of ionospheric inhomogeneities

Cited by 8 publications

References 15 publications

Radio Techniques for Probing the Terrestrial Ionosphere

Radio Techniques for Probing the Terrestrial Ionosphere

Deterministic retrieval of ionospheric phase screen from amplitude scintillations

Investigations of the ionosphere by satellite radiotomography

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