ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    facet.materialart.
    Unknown
    Digital-Difference Processing For Collision Avoidance. (1988)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: Digital system for automotive crash avoidance measures and displays difference in frequency between two sinusoidal input signals of slightly different frequencies. Designed for use with Doppler radars. Characterized as digital mixer coupled to frequency counter measuring difference frequency in mixer output. Technique determines target path mathematically. Used for tracking cars, missiles, bullets, baseballs, and other fast-moving objects.
    Keywords: ELECTRONIC SYSTEMS
    Type: MSC-20865 , NASA Tech Briefs (ISSN 0145-319X); 12; 3; P. 28
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 2
    facet.materialart.
    Unknown
    Microwave Deflection Sensor (1988)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: Doppler-radar instrument measures small deflections or vibrations of reflecting surface. Acting as interferometric micrometer, instrument includes combination of analog and digital circuits measuring change in phase of radar return due to movement of reflecting surface along signal-propagation path. Includes homodyne Doppler-radar transceiver and digital signal-processing circuitry to measure change in phase shift as target deflects.
    Keywords: ELECTRONIC SYSTEMS
    Type: MSC-20974 , NASA Tech Briefs (ISSN 0145-319X); 12; 11; P. 36
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 3
    facet.materialart.
    Unknown
    Transponder System for High-Frequency Ranging (1986)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: Transponder system uses phase difference between transmitted and reflected high-frequency radio waves to measure distance to target. To suppress spurious measurements of reflections from objects near target at transmitted frequency and its harmonics, transponder at target generates return signal at half transmitted frequency. System useful in such applications as surveying, docking of ships, and short-range navigation.
    Keywords: ELECTRONIC SYSTEMS
    Type: MSC-20912 , NASA Tech Briefs (ISSN 0145-319X); 10; 5; P. 54
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...