Frost Beamformer

The input signal is defined as a matrix M by N, where M is the number of signal samples, and N is the number of elements in the antenna array.

Data types: Float16, Float32, Float64, Int8, Int16, Int32, Int64, UInt8, UInt16, UInt32, UInt64, Bool

Support for complex numbers: Yes

The input signal is defined as a matrix M by N, where M is the number of signal samples, and N is the number of elements in the antenna array.

Dependencies

To use this port, select the Enable training data input checkbox.

Data types: Float16, Float32, Float64, Int8, Int16, Int32, Int64, UInt8, UInt16, UInt32, UInt64, Bool

Support for complex numbers: Yes

The direction of ray formation, defined as a 2-by-1 real vector, having the form [AzimuthAngle;ElevationAngle]. The angle measurement units are degrees. The azimuthal angle should be in the range of −180° before 180° inclusive, and the angle of the seat is in the range from −90° before 90° inclusive. The angles are set relative to the local coordinate system of the array.

Dependencies

To use this port, set the Source of beamforming direction parameter to Input port.

Data types: Float16, Float32, Float64, Int8, Int16, Int32, Int64, UInt8, UInt16, UInt32, UInt64, Bool

The output signal generated by the beam is returned as a complex vector by 1. Value — the number of signal samples.

Data types: Float16, Float32, Float64, Int8, Int16, Int32, Int64, UInt8, UInt16, UInt32, UInt64, Bool

Support for complex numbers: Yes

The weighting coefficients during beam formation, returned as a complex vector N by 1. The value of N is the number of elements in the antenna array. If the Specify sensor array as parameter is set to Partitioned array or Replicated subarray, then N represents the number of subarrays.

Dependencies

To use this port, select the Enable weights output checkbox.

Data types: Float16, Float32, Float64, Int8, Int16, Int32, Int64, UInt8, UInt16, UInt32, UInt64, Bool

Support for complex numbers: Yes

The propagation velocity of the signal in the form of a real positive scalar. The default value is the speed of light.: 3e8 m/s.

The units of measurement are meters per second.

Data types: Float16, Float32, Float64, Int8, Int16, Int32, Int64, UInt8, UInt16, UInt32, UInt64

Check the box to inherit the sampling rate from higher-level blocks. Otherwise, set the sampling rate using the Sample rate (Hz) parameter.

The sampling frequency of the signal in the form of a positive scalar. The units of measurement are hertz.

Dependencies

To use this option, uncheck the Inherit sample rate checkbox.

Data types: Float16, Float32, Float64, Int8, Int16, Int32, Int64, UInt8, UInt16, UInt32, UInt64, Bool

The length of the FIR filter used to process the signal from each element of the antenna array is set as a positive integer.

Data types: Float16, Float32, Float64, Int8, Int16, Int32, Int64, UInt8, UInt16, UInt32, UInt64, Bool

Specify the diagonal load factor as a non-negative scalar. Diagonal loading is a technique used to achieve reliable beamforming performance, especially when the training signal sample is small.

Select this option to set additional training data via the input port. XT. To use the input signal as training data, uncheck the box that removes this port.

The source of the beam formation direction, specified as Property or Input port. If the Source of beamforming direction parameter is set to Property, the direction is set using the Beamforming direction (deg) parameter. When selecting a value Input port The direction is determined by the entrance to the port Ang.

The direction of ray formation, defined as a 2-by-1 real vector having the shape [AzimuthAngle;ElevationAngle]. The azimuthal angle should be in the range of −180°` up to 180°. The angle of the seat should be in the range of −90° to 90°. The angles are set relative to the local coordinate system of the array.

Dependencies

To use this parameter, set the Source of beamforming direction parameter to Property.

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

Block modeling, specified as Interpreted Execution or Code Generation. If you want your block to use an interpreter Engee, select Interpreted Execution. If you want your block to run as compiled code, select Code Generation. Compiled code takes time to compile, but is usually faster.

Interpreted execution is useful when designing and configuring a model. The block starts the basic system object in Engee. You can quickly change and execute your model. When you are satisfied with the results, you can run the block using code generation. Long simulations run faster with Code Generation than with interpreted execution. You can perform repeated runs without recompilation, but if you change any block parameters, the block is automatically recompiled before execution.

This table shows how the Simulate using parameter affects the overall behavior of the simulation.

When the model Engee It is in the mode of Accelerator, then the block mode set using the Simulate using parameter overrides the simulation mode.

Acceleration Modes

Specify a sensor element or array of sensors. The sensor array can also contain subarrays or be split into parts.

Available values:

The type of antenna array element.

Available values:

The range of operating frequencies of the antenna array element in the form of a vector row 1 by 2 in the form of [LowerBound,UpperBound]. The element has no response outside this frequency range. The units of frequency measurement are Hz.

Dependencies

To use this parameter, set the Element type parameter to Isotropic Antenna, Cosine Antenna or Omni Microphone.

Set this flag to exclude radiation to the rear hemisphere. The response from the rear hemisphere at all azimuth angles outside the ±90° range from the wide side is set to zero. The wide-angle direction is defined as the azimuth angle of 0° and the elevation angle of 0°.

Dependencies

To use this parameter, set the Element type parameter to Isotropic Antenna or Omni Microphone.

The direction of the axis is along the zero radiation.

Dependencies

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

The exponent of the exponent 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 direction of the azimuth, and the second is in the direction of the angle of the place. 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.

The array of operating frequencies of the antenna array element in the form of a vector row 1 on increasing actual values. The element has no response beyond the frequency range specified by the minimum and maximum elements of this vector. The units of frequency measurement are Hz.

Dependencies

To use this parameter, set the Element type parameter to Custom Antenna or Custom Microphone. To set the responses at these frequencies, use the Frequency responses (dB) parameter.

The frequency response of the user elements of the antenna arrays is determined by the parameter Operating frequency vector (Hz). The dimensions of the Frequency responses (dB) vector must match the dimensions of the vector specified by the Operating frequency vector (Hz) parameter.

Dependencies

To use this parameter, set the Element type parameter to Custom Antenna or Custom Microphone.

The choice of the coordinate system of the radiation pattern of the user antenna is indicated az-el or phi-theta. When choosing az-el The Azimuth angles (deg) and Elevation angles (deg) parameters are used to set the coordinates of the directional pattern points. When specifying a parameter phi-theta The Phi angle (deg) and Theta angles (deg) parameters are used to set the coordinates of the part points.

Dependencies

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

The values of the azimuth angles, which will be used to calculate the antenna pattern in the form of a vector row 1 on . it must be more than 2. The azimuth angles should be in the range of −180° up to 180° inclusive and arranged in strictly ascending order.

Dependencies

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

The values of the angles of the location at which it is necessary to calculate the radiation pattern in the form of a vector 1 on . it must be more than 2. The units of measurement of angles are degrees. The angles of the seat should be in the range of −90° to 90° inclusive and arranged in strictly ascending order.

Dependencies

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

The angular coordinates of the Phi points where the antenna radiation pattern is set. They are defined as a real vector-row 1 on . it must be more than 2. The units of measurement of angles are degrees. Angle values Phi They should be in the range from 0° to 360° and arranged in strictly ascending order.

Dependencies

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

The angular coordinates of the Theta points where the antenna radiation pattern is set. They are defined as a real vector-row 1 on . it must be more than 2. The units of measurement of angles are degrees. Angle values Theta They should be in the range from 0° to 180° and arranged in strictly ascending order.

Dependencies

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

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

Value is equal to the value of the Operating frequency vector (Hz) parameter.

Dependencies

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

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

Value is equal to the value of the Operating frequency vector (Hz) parameter.

Dependencies

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

If the parameter value is enabled then the radiation pattern of the antenna element is rotated to align with the normal of the array. If turned off, then the drawing of the element does not rotate.

If the antenna is used in an antenna array and the parameter Input Pattern Coordinate System is set to az-el If this flag is selected, the radiation pattern rotates so that the x-axis of the element’s coordinate system points along the normal of the array. If there is no selection, the element template is used without rotation.

If the antenna is used in an antenna array and the parameter Input Pattern Coordinate System is set to phi-theta If this flag is selected, the radiation pattern rotates so that the z axis of the element’s coordinate system points along the normal of the array.

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

Dependencies

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

The beam width of the antenna pattern in degrees.

Dependencies

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

The frequency values for the polar radiation pattern are set as a real scalar or a real vector-row 1 on . The frequencies are in the frequency range specified by the parameter Operating frequency vector (Hz).

Dependencies

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

The angle values for the polar radiation pattern of the microphone are set as a vector . The angles are measured from the central axis of the microphone and should be in the range of −180° to 180° inclusive.

Dependencies

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

Set the value of the polar radiation pattern of the user microphone as a real vector-row 1 on , where — the number of frequencies specified in the parameter Polar pattern frequencies (Hz). The string represents the value of the polar radiation pattern measured at the corresponding frequency specified in the Polar pattern frequencies (Hz). The radiation pattern is measured in the azimuthal plane. In the azimuthal plane, the elevation angle is 0°, and the central axis is 0° in azimuth and 0° in elevation. The polar radiation pattern is symmetrical around the central axis. Based on the polar diagram, it is possible to construct a microphone directional pattern in three-dimensional space.

Dependencies

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

Antenna configuration, specified as:

The number of elements for the grid type ULA or UCA, set as an integer greater than or equal to 2.

Dependencies

To use this parameter, set the Geometry parameter to ULA or UCA.

The distance between adjacent array elements:

Dependencies

To use this parameter, set the Geometry parameter to ULA or URA.

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

Dependencies

Array sizes URA, given as a positive integer or a vector of 1 by 2 positive integers.

If the size of the array is a 1 by 2 vector, then the vector has the form [NumberOfArrayRows,NumberOfArrayColumns].

For URA The array elements are indexed from top to bottom in the leftmost column of the array and then in the following columns from left to right.

Grid of element positions URA, set as rectangular or triangular.

Dependencies

To use this parameter, set the Geometry parameter to URA.

The direction of the normal to the lattice, given as x, y or z.

The elements of the flat grids lie in a plane orthogonal to the selected direction of the array normal. The side view directions of the elements are directed along the direction of the normal.

Dependencies

To use this parameter, set the Geometry parameter to URA or UCA.

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

Dependencies

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

The positions of the elements of the conformal lattice, given as a matrix of real values of dimension 3 on , where – the number of elements in the conformal array. Each column of this matrix represents a position ['x';'y';'z'] 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 meters.

Dependencies

To use this parameter, set the Geometry parameter to Conformal Array.

The direction of the normal vectors of elements in a conformal lattice, defined as a 2-by-1 column vector or a 2-by-1 matrix . indicates the number of elements in the array. If the parameter is a matrix, each column specifies the direction of the normal of the corresponding element in the form [azimuth;elevation] relative to the local coordinate system. The local coordinate system aligns the positive axis with the direction of the normal to the conformal lattice. If the parameter value is a 2-by-1 column vector, the same pointing direction is used for all array elements.

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

To use this parameter, set the Geometry parameter to Conformal Array.

Complex weighting coefficients for antenna array elements, given as a complex scalar, a complex string vector on or a complex column vector on , where It represents the number of antenna array elements. Weighting factors are applied to each antenna element of the antenna array and change the amplitude and phase of the received data.