DPCA Canceller

The propagation velocity of the signal in the form of a real positive scalar.

The operating frequency of the system, set as a positive scalar.

The source of the pulse repetition rate (PRF) value:

Pulse repetition rate (PRF), set as a positive scalar.

Set this parameter to the same value that is set in any library block used in modeling. Waveforms.

Dependencies

To enable this parameter, set the Specify PRF as parameter to Property.

The source of the positioning direction values:

Specify the direction of the radiation pattern of the antenna array of the antenna element in the form of a 2-by-1 real vector. The direction is set in the format [AzimuthAngle; ElevationAngle]. The azimuth angle should be in the range from -180° to 180°, and the elevation angle should be from -90° to 90°.

Dependencies

To enable this parameter, set the Specify direction as parameter to Property.

The number of bits used to quantize the phase shift component of the beamformer or control vector weights. Specify the number of bits as a non-negative integer. A value of zero means that quantization is not performed.

Source of Doppler guidance on target:

The Doppler positioning of the STAP processor, set as a scalar.

Dependencies

To use this parameter, uncheck the Output pre-Doppler result parameter and set the Specify targeting Doppler as parameter to Property.

Check this box to get the beam shaper weights via the output port W.

Select this option to display the results before Doppler filtering.

Uncheck this box to display the result of processing after Doppler filtering.

The method for setting the antenna array, specified as `Array (no subarrays)'.

The type of antenna or acoustic element specified as one of the following:

Specify the frequencies at which it is necessary to set the frequency characteristics of the antenna and the acoustic element, in the form of a vector of lines 1 to with increasing real values. The antenna or acoustic element has no response outside the frequency range specified by the minimum and maximum elements of this vector.

Dependencies

To enable this option, set the Element type parameter to Custom Antenna or `Custom Microphone'. Use Frequency responses (dB) to set responses at these frequencies.

The frequency response of a custom antenna or custom acoustic element for frequencies defined by the parameter Operating frequency vector (Hz). The dimension of Frequency responses (dB) must match the dimension of the vector specified by the parameter Operating frequency vector (Hz).

Dependencies

To enable this option, set the Element type parameter to Custom Antenna or `Custom Microphone'.

The coordinate system of the custom antenna pattern, specified as az-el or `phi-theta'.

Dependencies

To enable this parameter, set the Element type parameter to Custom Antenna.

Specify the azimuthal angles by which the antenna radiation pattern is calculated as a vector of lines 1 on . must be more than 2. The azimuthal angles should lie between -180° and 180°, inclusive, and be arranged in strictly ascending order.

Dependencies

To enable this parameter, set the Element type parameter to Custom Antenna and the Input Pattern Coordinate System parameter to az-el.

Specify the elevation angles at which the radiation pattern will be calculated, in the form of a vector 1 on . it must be more than 2.

Elevation angles should range from -90° to 90° inclusive and be arranged in strictly ascending order.

Dependencies

To enable this parameter, set the Element type parameter to Custom Antenna and the Input Pattern Coordinate System parameter to az-el.

Phi-the angles of the points at which the antenna radiation pattern is set are given as a real vector 1 on . it must be more than 2.

The Phi angles should range from 0° to 360° and be arranged in strictly ascending order.

Dependencies

To enable this parameter, set the Element type parameter to Custom Antenna and the Input Pattern Coordinate System parameter to phi-theta.

Theta-the angles of the points at which the antenna radiation pattern is set are given as a real vector 1 on . it must be more than 2.

The theta angles should range from 0° to 360° and be arranged in strictly ascending order.

Dependencies

To enable this parameter, set the Element type parameter to Custom Antenna and the Input Pattern Coordinate System parameter to phi-theta.

The value of the radiation pattern of the combined antenna, set as a matrix on or an array on on .

Meaning is equal to the length of the Operating frequency vector (Hz) vector.

Dependencies

To enable this parameter, set the Element type parameter to Custom Antenna.

The phase diagram of the combined antenna radiation, defined as a matrix on or an array on on .

Meaning is equal to the length of the Operating frequency vector (Hz) vector.

Dependencies

To enable this parameter, set the Element type parameter to Custom Antenna.

Select this option to rotate the antenna element template according to the array normal. If the checkbox is not checked, the element’s outline does not rotate.

Use this parameter together with the Array normal parameter of the URA and UCA arrays.

Dependencies

To enable this parameter, set the Element type parameter to Custom Antenna.

The response frequencies of an acoustic element with a polar radiation pattern, specified as a real scalar or vector 1 on . The response frequencies are in the frequency range specified by the Operating frequency vector (Hz) vector.

Dependencies

To enable this parameter, set the Element type parameter to Custom Microphone.

Specify the response angles of the polar radiation pattern in the form of a vector 1 on . The angles are measured from the central axis of the acoustic element and should be in the range from -180° to 180° inclusive.

Dependencies

To enable this parameter, set the Element type parameter to Custom Microphone.

Set the value of the polar characteristic of the user acoustic element in the form of a matrix on . is the number of frequencies specified in the Polar pattern frequencies (Hz). is the number of angles specified in the Polar pattern angles (deg). Each row of the matrix represents the value of the polar radiation pattern measured at the corresponding frequency specified in Polar pattern frequencies (Hz) and all angles specified in Polar pattern angles (deg).

The pattern is measured in the azimuthal plane. In the azimuthal plane, the elevation angle is 0°, and the central axis of capture is 0° degrees in azimuth and 0° degrees in elevation. The radiation pattern is symmetrical around the central axis. Based on the polar radiation pattern, you can build a radiation pattern of an acoustic element in three-dimensional space.

Dependencies

To enable this parameter, set the Element type parameter to Custom Microphone.

Specify the operating frequency range of the antenna or acoustic element as a 1 by 2 vector in the form of `[LowerBound,UpperBound]'. The element has no response outside this frequency range.

Dependencies

To enable this parameter, set the Element type parameter to Isotropic Antenna, Cardioid Antenna, Cosine Antenna, Gaussian Antenna, Sinc Antenna or 'Omni Microphone'.

The angles of the radiation pattern solution in degrees.

Dependencies

To use this parameter, set the Element type parameter to Gaussian Antenna or `Sinc Antenna'.

The direction of the zero radiation axis.

Dependencies

To use this parameter, set the Element type parameter to Cardioid Antenna.

Exponents of the cosine model in the form of a non-negative scalar or a 1 by 2 real matrix of non-negative values. If the Exponent of cosine pattern is a 1 by 2 vector, then the first element is the exponent in the azimuth direction, and the second is in the elevation direction. With a scalar value of this parameter, the cosines in the azimuthal and elevation directions are raised to one power.

Dependencies

To use this parameter, set the Element type parameter to `Cosine Antenna'.

Select this option to mute the feedback of the element. With the reverse deflector, the responses at all azimuth angles exceeding 90° from the wide side, set to zero. The wide side is defined as 0° azimuth angle and 0° elevation angle.

Dependencies

To enable this option, set the Element type parameter to Isotropic Antenna or `Omni Microphone'.

Specify the type of antenna array elements as one of the following:

The number of array elements for ULA arrays, set as an integer greater than or equal to two.

The radius of the UCA array, set as a positive scalar.

Dependencies

To enable this parameter, set the Geometry parameter to UCA.

The dimension of the URA array, specified as a positive integer or a vector of positive integers 1 by 2.

To do this, the array elements are indexed from top to bottom in the leftmost column, and then move to the next columns from left to right.

In this figure, the value [3,2] of the Array size parameter creates an array consisting of three rows and two columns.

Dependencies

To enable this parameter, set the Geometry parameter to `URA'.

The distance between neighboring ULA elements, specified as a positive scalar.

The direction of the ULA linear axis, set as y, x or z. All elements of the ULA array are evenly distributed along this axis in the local coordinate system of the array.

Dependencies

A grid of URA element positions, specified as Rectangular or `Triangular'.

Dependencies

To enable this parameter, set the Geometry parameter to `URA'.

The normal direction of the array, specified as x, y, or z.

The elements of flat arrays lie in a plane orthogonal to the selected direction of the array normal.

The viewing directions of the elements point along the direction of the normal of the array:

Dependencies

To enable this parameter, set the Geometry parameter to URA or `UCA'.

The positions of the elements in the conformal array, specified as a real matrix 3 by N, where N is the number of elements in the conformal array. Each column of this matrix represents the [x;y;z] coordinate of an array element in the local coordinate system of the array. The origin of the local coordinate system is (0,0,0).

The units of measurement are m.

If you set the Specify sensor array as parameter to Replicated subarray, this parameter is applied to each subarray.

Dependencies

To enable this parameter, set the Geometry parameter to `Conformal Array'.

The direction of the normal vectors of the elements in a conformal array, defined as a column vector 2 by 1 or a matrix 2 by N. N indicates the number of elements in the array. For the matrix, each column specifies the direction of the normal of the corresponding element in the form of [azimuth;elevation] relative to the local coordinate system.

The local coordinate system aligns the positive x-axis with the direction of the normal to the conformal array.

If the parameter value is a column vector 2 by 1, then the same direction is used for all elements of the array.

If the Specify sensor array as parameter is set to `Replicated subarray', this parameter is applied to each subarray.

You can use the Element positions (m) parameters and Element normals (deg) to represent any arrangement in which pairs of elements differ by certain transformations. Transformations can combine translation, azimuth rotation, and elevation rotation. However, you cannot use transformations that require rotation relative to the direction of the normal.

Dependencies

To enable this parameter, set the Geometry parameter to `Conformal Array'.

The narrowing of an element, defined as a complex scalar or a complex vector of strings 1 by _N. In this vector, N represents the number of elements in the antenna array.

Also known as weight coefficients, cones multiply the responses of antenna array elements. The cones change the amplitude and phase of the response to reduce the side lobes or direct the main axis of the response.

If you set the Specify sensor array as parameter to Replicated subarray, this parameter is applied to each subarray.

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