EngeePhased.OmnidirectionalMicrophoneElement
Isotropic microphone.
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Description
System object EngeePhased.OmnidirectionalMicrophoneElement Simulates a microphone with an isotropic radiation pattern.
To create and use an isotropic microphone, follow these steps:
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Create an object EngeePhased.OmnidirectionalMicrophoneElement and set its properties.
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Call an object with arguments as if it were a function.
To learn more about how to work with system objects, see Engee System Objects.
Syntax
Creation
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microphone = phased.OmnidirectionalMicrophoneElement()— Creates an isotropic microphone with by default property values. -
microphone = phased.OmnidirectionalMicrophoneElement(Name=Value)— creates an isotropic microphone with specified properties in the form of a pairName=Value, whereName— the name of the property, andValue— appropriate value. You can specify multiple pairs «name-value» the order of the pairs does not matter. Unspecified properties retain their by default values.
Arguments
Input arguments
FREQ — microphone operating frequencies
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scalar | vector-string of length L
Details
The operating frequencies of the microphone, specified as a real positive scalar or a real vector, are strings of length containing positive numbers.
Units of measurement — Hz.
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ANG — azimuth angle and angle of the radiation pattern
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vector-string of length M | matrix 2 by M
Details
The directions of the radiation pattern, specified as a real vector-a string of length or a real matrix on .
If ANG is a matrix, then each column specifies a direction in the form [azimuth; elevation]. The azimuthal angle should be in the range of −180° before 180° inclusive. The angle of the seat should be in the range of −180° before 180° inclusive.
If ANG is a string vector, each element specifies the azimuthal angle of the direction. In this case, the corresponding angle of the place is assumed to be equal 0°.
The units of measurement are degrees.
For more information about the azimuth angle and the elevation angle, see Azimuthal angles and place angles.
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Properties
# FrequencyRange — operating frequency range
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[0.0 1.0e20] (by default) | a non-negative real vector is a 1 by 2 row
Details
The operating frequency range of the microphone, specified as a non-negative real vector on in the format [LowerBound HigherBound]. The microphone does not have a radiation pattern outside the specified frequency range.
Units of measurement — Hz.
# BackBuffled — mute the echo of the element
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false (by default) | true
Details
Mute the echo of an element, set as false or true.
Set this property to true so that on the reverse side of the microphone element, the radiation pattern is zero. That is, at all azimuthal angles exceeding ±90° from the wide side (azimuth angle 0° and the angle of the place 0°), the radiation pattern is zero.
When the value of this property is false. the back side of the microphone has no reflection.