Accession Number:

ADA193402

Title:

Radar Information from the Partial Derivatives of the Echo Signal Phase from a Point Scatterer

Descriptive Note:

Memorandum rept

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC

Personal Author(s):

• Skolnik, Merrill I.

Report Date:

1988-02-17

Pagination or Media Count:

54.0

Abstract:

This report is concerned with the target information from a point scatterer as obtained from the partial derivatives of the echo-signal phase as a function of frequency, time, and spatial position. These partial derivates provide the three basic radar measurements of range, range rate, and angle. The angle rate found from the spatial doppler-frequency shift due to a scatterer with a component of velocity perpendicular to the radar line of sight is suggested as a fourth basic radar measurement. The direct measurement of angle- rate from the spatial doppler frequency is illustrated by the example of a scanning interferometer radar with a cosine radiation pattern. The relationship between the partial phase-derivative measurements and the more conventional radar measurements is shown.

Descriptors:

• *SPATIAL DISTRIBUTION
• *DOPPLER EFFECT
• *RADAR SCANNING
• *INTERFEROMETERS
• FREQUENCY
• MEASUREMENT
• RATES
• TARGETS
• SIGNALS
• ECHOES
• RADAR
• POSITION(LOCATION)
• ANGLES

Subject Categories:

• Active and Passive Radar Detection and Equipment
• Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE