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Beamwidth is a redirect to beam diameter

searching for Beamwidth 60 found (167 total)

alternate case: beamwidth

Synthetic-aperture sonar (1,906 words) [view diff] exact match in snippet view article find links to article

a straight line, those pings that have the image position within the beamwidth constitute the synthetic array. By coherent reorganization of the data

Curtain array (2,418 words) [view diff] exact match in snippet view article find links to article

dipole array, the beamwidth is around 50° For a 3-wide dipole array, the beamwidth is around 40° For a 4-wide dipole array, the beamwidth is around 30° The

Echo sounding (1,575 words) [view diff] exact match in snippet view article find links to article

The beamwidth of the transducer is also a consideration for the hydrographer, as to obtain the best resolution of the data gathered a narrow beamwidth is

Single vegetative obstruction model (697 words) [view diff] exact match in snippet view article find links to article

Azimuth beamwidth of the transmitter. Unit: degree or radian aR = Azimuth beamwidth of the receiver. Unit: degree or radian eT = Elevation beamwidth of the

D. B. Keele Jr. (412 words) [view diff] exact match in snippet view article find links to article

calculator aided design, anechoic chambers, interaural crosstalk, and Constant Beamwidth Transducers (CBT loudspeakers). Keele has won several awards including

Synthetic-aperture radar (10,945 words) [view diff] exact match in snippet view article find links to article

to the bandwidth of the Doppler shift of the signal returns within the beamwidth. Since Doppler frequency depends on the angle of the scattering point's

Spaceborne Imaging Radar (538 words) [view diff] exact match in snippet view article find links to article

ground = 15–90 kilometers (9.3–55.9 miles) C-band beamwidth = 0.25 deg. × 5 deg. L-band beamwidth = 1.1 deg. × 6 deg. Scan angle range = ±23 deg. from

Phased array (5,023 words) [view diff] exact match in snippet view article find links to article

must extend many wavelengths to achieve the high gain needed for narrow beamwidth, phased arrays are mainly practical at the high frequency end of the radio

AN/SPS-6 (1,156 words) [view diff] exact match in snippet view article find links to article

the beamwidth was 3 ° x 10 °, and it could be detected at 80 nmi (150 km) for the fighter. The antenna size was similar to -6, but the beamwidth was 3

Leaky wave antenna (3,227 words) [view diff] exact match in snippet view article find links to article

changing the frequency), while the attenuation constant α controls the beamwidth. The aperture distribution can also be easily tapered to control the sidelobe

List of satellites in geosynchronous orbit (729 words) [view diff] exact match in snippet view article find links to article

The major consideration for spacing of geostationary satellites is the beamwidth at-orbit of uplink transmitters, which is primarily a factor of the size

Radar (11,751 words) [view diff] exact match in snippet view article find links to article

use a spoiled parabolic antenna with a narrow azimuthal beamwidth and wide vertical beamwidth. This beam configuration allows the radar operator to detect

SMART-L (439 words) [view diff] exact match in snippet view article find links to article

elements: 24 (16 transceivers, 8 receivers) Number of beams formed: 16 Beamwidth 2.2° horizontal, 0–70° vertical Polarization: vertical Frequency: L band

Australia's weather radars (1,264 words) [view diff] exact match in snippet view article find links to article

Transmitter/receiver, servo and a 'MET' only antenna purchased from EEC." Radar beamwidths are not exact. The Australian Capital Territory is served by the Captains

Helical antenna (2,179 words) [view diff] exact match in snippet view article find links to article

{\displaystyle G_{\text{dBi}}=10\log _{10}\left(3.45N\right)~.} The half-power beamwidth is: HPBW ≃ 5 2 C λ N S λ degrees {\displaystyle {\text{HPBW}}\simeq

Amplitude-comparison monopulse (239 words) [view diff] exact match in snippet view article find links to article

dependent on the signal-to-noise ratio (SNR). An accuracy of a tenth of beamwidth can be achieved with an SNR of 10 dB. In most implementations, two signals

Radar engineering (1,396 words) [view diff] exact match in snippet view article find links to article

Synthetic aperture radar (SAR) allow for an angular resolution beyond real beamwidth by moving the aperture over the target, and adding the echoes coherently

Radar signal characteristics (3,760 words) [view diff] exact match in snippet view article find links to article

facets related to PRF that the designer must weigh very carefully; the beamwidth characteristics of the antenna, and the required periodicity with which

CfA 1.2 m Millimeter-Wave Telescope (3,768 words) [view diff] exact match in snippet view article find links to article

designed with a relatively small dish and consequently a relatively large beamwidth of about 1/8 degree, which can be likened to a wide-angle lens. With this

CfA 1.2 m Millimeter-Wave Telescope (3,768 words) [view diff] exact match in snippet view article find links to article

designed with a relatively small dish and consequently a relatively large beamwidth of about 1/8 degree, which can be likened to a wide-angle lens. With this

Voyager program (5,826 words) [view diff] exact match in snippet view article find links to article

high-gain antenna has a beamwidth of 0.5° for X-band, and 2.3° for S-band.: 17 (The low-gain antenna has a 7 dB gain and 60° beamwidth.): 17 Because of the

AN/CPS-9 (450 words) [view diff] exact match in snippet view article find links to article

These radars had a dish diameter of a little less than 8 feet. The radar beamwidth was 1 degree. The CPS-9 antenna required no radome, and the entire radio

AN/FPQ-6 (1,898 words) [view diff] exact match in snippet view article find links to article

diameter parabolic antenna, using a Cassegrain antenna feed, had a 0.4° beamwidth and a gain of 51 dB. Its monopulse, 5 horn feed system permitted the reference

Explorer 29 (1,328 words) [view diff] exact match in snippet view article find links to article

total reflecting area of 0.18-m2. The reflectors conserved the narrow beamwidth of incoming light and reflected a maximum signal to the Earth, almost

Explorer 36 (1,567 words) [view diff] exact match in snippet view article find links to article

total reflecting area of 0.18 m2. The reflectors conserved the narrow beamwidth of incoming light and provided a maximum signal to the ground almost exactly

Ku band (1,566 words) [view diff] exact match in snippet view article find links to article

parabolic dish required to create a radiation pattern with a given angular beamwidth (gain) is proportional to the wavelength, and thus inversely proportional

Surveillance Towed Array Sensor System (1,178 words) [view diff] exact match in snippet view article find links to article

depth of the LFA array center is 120 m [400 ft]), with a narrow vertical beamwidth that can be steered above or below the horizontal. The source frequency

Side looking airborne radar (688 words) [view diff] exact match in snippet view article find links to article

azimuthal resolution (better known as crossrange resolution) depends on the beamwidth of the radar antenna. It is derived from the ratio of the physical size

Aliasing (2,558 words) [view diff] exact match in snippet view article find links to article

ISBN 0-534-03303-2. The (New) Stanford Light Field Archive Flanagan, James L., "Beamwidth and useable bandwidth of delay-steered microphone arrays", AT&T Tech.

Wave radar (2,019 words) [view diff] exact match in snippet view article find links to article

bandwidth of the radar signal (see radar signal characteristics) and the beamwidth of the radar antenna. The beam of a microwave antenna diverges. Consequently

Würzburg radar (1,711 words) [view diff] exact match in snippet view article find links to article

was very close to centered, the angular resolution was smaller than the beamwidth of the antenna, leading to greatly improved accuracy on the order of 0

Base station subsystem (1,710 words) [view diff] exact match in snippet view article find links to article

served from the same location. Typically these directional antennas have a beamwidth of 65 to 85 degrees. This increases the traffic capacity of the base station

Radiation pattern (2,081 words) [view diff] exact match in snippet view article find links to article

2022-01-22. (in support of MIL-STD-188). Understanding and Using Antenna Radiation Patterns By Joseph H. Reisert Explanation of the term “Two-Way beamwidth”

History of synthetic-aperture radar (3,688 words) [view diff] exact match in snippet view article find links to article

identified several of the TEOTA subjects, including Doppler-assisted sub-beamwidth resolution, as research efforts to be sponsored by the Department of Defense

J-pole antenna (2,371 words) [view diff] exact match in snippet view article find links to article

often of the Franklin style. The Super-J antenna compresses the vertical beamwidth and has more gain than the conventional J-pole design. Both radiating

Foster scanner (914 words) [view diff] exact match in snippet view article find links to article

horizontal scanning ranges were between 40 and 50 degrees, with a 1 degree beamwidth. In typical systems, the scanner would be mounted so that it could be

Patrick Thaddeus (1,085 words) [view diff] exact match in snippet view article find links to article

designed with a relatively small dish and consequently a relatively large beamwidth of about 1/8 degree, which can be likened to a wide-angle lens. With this

Active electronically scanned array (5,305 words) [view diff] exact match in snippet view article find links to article

but which precludes reception by other units not within the antennas beamwidth, whereas like most Wi-Fi designs, Link-16 transmits its signal omni-directionally

Airport surveillance radar (2,066 words) [view diff] exact match in snippet view article find links to article

elevation aircraft with less ground clutter. The antenna has a gain of 34 dB, beamwidth of 5° in elevation and 1.4° in azimuth. It rotates at a rate of 12.5 RPM

Ronald N. Bracewell (2,515 words) [view diff] exact match in snippet view article find links to article

ed. H. Jacobs, 1959 The Radio Noise Spectrum Correcting Noise Maps for Beamwidth, ed. D. H. Menzel, 1960 Modern Physics for the Engineer Radio Astronomy

AIRPASS (1,488 words) [view diff] exact match in snippet view article find links to article

of range difficult as the radar returned signals were from the entire beamwidth, meaning that it received signals that were from the ground that was closer

BoomSAR (1,843 words) [view diff] exact match in snippet view article find links to article

low-frequency UWB SAR application, the TEM horn antennas have a wide beamwidth in excess of 90 degrees and are fitted with a high-power, wide-bandwidth

Secondary surveillance radar (4,842 words) [view diff] exact match in snippet view article find links to article

further interrogation. The ground antenna has a typical horizontal 3 dB beamwidth of 2.5° which limits the accuracy in determining the bearing of the aircraft

Terrain-following radar (3,572 words) [view diff] exact match in snippet view article find links to article

Early Airborne Interception radars used conical scanning systems with beamwidths on the order of four degrees. When the beam hits the ground, some of the

Giant Ukrainian Radio Telescope (1,211 words) [view diff] exact match in snippet view article find links to article

whereas the phasing between subarrays is planned to be digital. The beamwidth (HPBW) of a single subarray beam at 40 MHz is about 20.4°. The estimate

United States Space Surveillance Network (4,067 words) [view diff] exact match in snippet view article find links to article

variable-focus feed horn provided a wide beam for detection and a narrow beamwidth for tracking. That antenna was replaced by a new antenna and pedestal

Horn loudspeaker (4,437 words) [view diff] exact match in snippet view article find links to article

high-frequency coverage pattern. In May 1975, to address problems of beamwidth changing at different frequencies, D. Broadus "Don" Keele, Jr. of Electro-Voice

Sonar (12,401 words) [view diff] exact match in snippet view article find links to article

is formed. Such a projector has advantages of broad bandwidth, narrow beamwidth, and when fully developed and carefully measured it has no obvious sidelobes:

Sound localization (6,429 words) [view diff] exact match in snippet view article find links to article

three-dimensional aquatic environment by utilizing highly directional (3 dB beamwidth of about 10 deg), broadband (3 dB bandwidth typically of about 40 kHz;

Orbital angular momentum of light (3,818 words) [view diff] exact match in snippet view article find links to article

of the output strip-shaped modes by the number of spirals in the input beamwidth. Research into OAM has suggested that light waves could carry hitherto

Unified S-band (3,383 words) [view diff] exact match in snippet view article find links to article

data for two spacecraft simultaneously, provided they are within the beamwidth of the single antenna. The primary mode of tracking and communications

Blip-to-scan ratio (2,403 words) [view diff] exact match in snippet view article find links to article

depending on the mode, its antenna rotated at about 6 RPM and had an angular beamwidth of 2 degrees. Against a bomber-sized target flying at common altitudes

RCA AN/FPS-16 Instrumentation Radar (3,937 words) [view diff] exact match in snippet view article find links to article

radiation. The radar utilizes a 12-foot (4 m) parabolic antenna giving a beamwidth of 1.2 degrees at the half-power points. The range system uses 1.0, 0

Chirp compression (10,100 words) [view diff] exact match in snippet view article find links to article

of the better performing windowing functions are shown in the graph of Beamwidth × Bandwidth as sidelobe level. The lowest full line on the graph is for

H2S (radar) (10,457 words) [view diff] exact match in snippet view article

larger whirligig reflector and a slotted waveguide allowed the angular beamwidth to be reduced to 1.5 degrees, a great improvement over the World War II

Phase-comparison monopulse (2,619 words) [view diff] exact match in snippet view article find links to article

Mono-pulse ratio within 1 beamwidth of the main response axis

Searchlight Control radar (5,433 words) [view diff] exact match in snippet view article find links to article

closely matched the performance of the 150 cm searchlight, which had a beamwidth of 1.25 degrees and was able to penetrate clouds. This pairing became

Antenna types (8,271 words) [view diff] exact match in snippet view article find links to article

by PCB techniques have made them popular in modern wireless devices. Beamwidth and polarization can be actively reconfigurable. NASA Cassegrain, Extremely

History of the Deep Space Network (3,767 words) [view diff] exact match in snippet view article find links to article

and both in view of a DSN site at the same time, though not within the beamwidth of a single antenna. Tracking both simultaneously required two antennas

Transmitarray antenna (4,884 words) [view diff] exact match in snippet view article find links to article

cells. These focus the wavefronts from a feeding antenna into a narrower beamwidth. By applying a progressive phase shift across the aperture of the transmitarray