&lt;title&gt;Continuous-Scan Charge-Coupled Device (CCD) Sensor System With Moving Target Indicator (MTI) For Satellite Surveillance&lt;/title&gt;

Kostishack, D. F.; Burke, Barry E.; Mayer, G. J.

doi:10.1117/12.959482

Cited by 5 publications

(2 citation statements)

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“…This technique has been described by Barbe (1975), used on star fields by Kostishack et al (1980), discussed by McGraw et al (1980), and further tested on stars by McGraw et al (1982).…”

Section: Continuous Scanning With the Rca Ccdmentioning

confidence: 99%

“…To avoid an excessive number of false alarms in our search for moving objects, we cannot afford to consider signals smaller than six times the rms noise. This severe requirement is a result of the large number of pixel-integrations processed per unit time (Kostishack et al 1980). Furthermore, this signal -to -noise ratio applies to the arithmetic difference between two frames, so the readout noise, background noise, and flat -field noise enter twice.…”

Section: Sources Of Noisementioning

confidence: 99%

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<title>Software Simulations Of The Detection Of Rapidly Moving Asteroids By A Charge-Coupled Device</title>

McMillan

Stoll

1982

SPIE Proceedings

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Because of the considerable interest in a space probe mission to a near -Earth asteroid, we are developing the techniques necessary for a ground -based telescopic survey to increase the known number of such objects. The faintness (apparent magnitude = 18 to 21) and angular speed (up to 1 arcsec per second) make the techniques of detection different from the photographic and vidicon methods currently being used to observe distant asteroids and artificial satellites. The geometric stability and regularity of the pixels in a CCD will allow better measurements of relative positions of stars and asteroids than are possible with film or vidicons, but to take full advantage of CCD's we have considered the effects of the earth's atmosphere, the image scale (arcsec/pixel), the spectral bandpass, the exposure time, the detective quantum efficiency of the CCD, the direction of asteroid motion with respect to the CCD channel boundaries, and the time between the two scans from which the asteroid motion is to be inferred.Two interesting tradeoffs are (i) the high signal -to -noise ratio of a broad spectral bandpass versus the sharper images due to the small atmospheric dispersion associated with a narrow bandpass and (ii) the greater sensitivity to motion resulting from a long time interval between the two scans versus the greater changes of atmospheric dispersion, seeing, and anomalous refraction over long time intervals.

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“…This technique has been described by Barbe (1975), used on star fields by Kostishack et al (1980), discussed by McGraw et al (1980), and further tested on stars by McGraw et al (1982).…”

Section: Continuous Scanning With the Rca Ccdmentioning

confidence: 99%

Section: Sources Of Noisementioning

confidence: 99%

<title>Software Simulations Of The Detection Of Rapidly Moving Asteroids By A Charge-Coupled Device</title>

McMillan

Stoll

1982

SPIE Proceedings

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Detection of small moving objects in image sequences using multistage hypothesis testing

Blostein

Huang

ICASSP-88., International Conference on Acoustics, Speech, and Signal Processing

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The detection of small, low-contrast, moving objects in a time sequence of digital images is addressed. Since object positions and velocities are unknown, a large number of candidate trajectories, organized into a tree-structure, are hypothesized at each pixel. At each "root" image pixel, trajectory extensions are mapped to tree nodes. Pixels along a trajectory are tested sequentially for a shift in mean intensity using multistage hypothesis testing (MHT). The MHT is designed according to prespecified error probabilities. Exact, closed-form expressions for MHT test performance are derived and then applied to predicting the algorithm's computation and memory requirements. Under a Gaussian white noise background assumption, it is shown theoretically that over 4000 candidate trajectories per pixel are tested using an average of only 30 additions and threshold comparisons.

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Fourier transformation using an electroabsorptive CCD spatial light modulator

Kingston

Leonberger²

1983

IEEE J. Quantum Electron.

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<title>Continuous-Scan Charge-Coupled Device (CCD) Sensor System With Moving Target Indicator (MTI) For Satellite Surveillance</title>

Cited by 5 publications

References 0 publications

<title>Software Simulations Of The Detection Of Rapidly Moving Asteroids By A Charge-Coupled Device</title>

<title>Software Simulations Of The Detection Of Rapidly Moving Asteroids By A Charge-Coupled Device</title>

Detection of small moving objects in image sequences using multistage hypothesis testing

Fourier transformation using an electroabsorptive CCD spatial light modulator

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