Answered

Relationship between noise power in a Band-Limited White Noise block VS Variance in a Random Number block

You may want to look at the Algorithm section of the following doc page https://www.mathworks.com/help/simulink/slref/bandlimit...

Relationship between noise power in a Band-Limited White Noise block VS Variance in a Random Number block

You may want to look at the Algorithm section of the following doc page https://www.mathworks.com/help/simulink/slref/bandlimit...

4 days ago | 0

Answered

Beamforming with FFT not showing Grating Lobes

This is because when you use FFT, by definition FFT covers only between 0 to 2pi. But when you have an element spacing of severa...

Beamforming with FFT not showing Grating Lobes

This is because when you use FFT, by definition FFT covers only between 0 to 2pi. But when you have an element spacing of severa...

5 days ago | 0

Answered

Problem in the initFcn callback of model

When you say that you rewrote the init function, did you overwrite it? If so, it should use the same one. You can certainly rena...

Problem in the initFcn callback of model

When you say that you rewrote the init function, did you overwrite it? If so, it should use the same one. You can certainly rena...

5 days ago | 0

Answered

IMU sensor fusion viewer "HelperOrientationViewer"

You may have to open the example in MATLAB and click the "Open Example" button. That will copy all necessary helper functions in...

IMU sensor fusion viewer "HelperOrientationViewer"

You may have to open the example in MATLAB and click the "Open Example" button. That will copy all necessary helper functions in...

8 days ago | 1

| accepted

Answered

Variable measurement length for trackingEKF

Could you elaborate what kind of system you are trying to model? In general the dimension of the measurement doens't change over...

Variable measurement length for trackingEKF

Could you elaborate what kind of system you are trying to model? In general the dimension of the measurement doens't change over...

12 days ago | 0

Answered

delay and sum beamforming

Have you tried phased.PhaseShiftBeamformer? That would perform delay and sum beamforming for you. HTH

delay and sum beamforming

Have you tried phased.PhaseShiftBeamformer? That would perform delay and sum beamforming for you. HTH

26 days ago | 0

Answered

Radar simulation: How to apply a precise delay?

The FreeSpace in Phased Array System Toolbox uses fractional delay fitler to approximate the delay between samples. HTH

Radar simulation: How to apply a precise delay?

The FreeSpace in Phased Array System Toolbox uses fractional delay fitler to approximate the delay between samples. HTH

1 month ago | 1

| accepted

Answered

phased.URA 8 by 1 array

This is a linear array, you can consider using phased.ULA to model it. phased.URA requires multiple elements in both dimensions....

phased.URA 8 by 1 array

This is a linear array, you can consider using phased.ULA to model it. phased.URA requires multiple elements in both dimensions....

1 month ago | 0

| accepted

Answered

what does this error error mean? "Array formation and parentheses-style indexing with objects of class 'phased.PhaseShiftBeamformer' is not allowed. Use objects of class 'phased.PhaseShiftBeamformer' only as scalars or use a cell array."

Let's say you have two objects bf1 = phased.PhaseShiftBeamformer; bf2 = phased.PhaseShiftBeamformer; The message indicates th...

what does this error error mean? "Array formation and parentheses-style indexing with objects of class 'phased.PhaseShiftBeamformer' is not allowed. Use objects of class 'phased.PhaseShiftBeamformer' only as scalars or use a cell array."

Let's say you have two objects bf1 = phased.PhaseShiftBeamformer; bf2 = phased.PhaseShiftBeamformer; The message indicates th...

2 months ago | 0

Answered

PHASED ARRAY TOOLBOX/ SINUSOIDAL VIBRATING TARGET MODELLING

Nothing off the shelf at this point. This being said, the interface of features in Phased Array System Toolbox are numeric vecto...

PHASED ARRAY TOOLBOX/ SINUSOIDAL VIBRATING TARGET MODELLING

Nothing off the shelf at this point. This being said, the interface of features in Phased Array System Toolbox are numeric vecto...

2 months ago | 0

Answered

How can i use global2localcoord function with axes?

From what you describe, your x axis is [1 1 0] and your y axis is [-1 1 0]. When yo specify the axes matrix, each colum represen...

How can i use global2localcoord function with axes?

From what you describe, your x axis is [1 1 0] and your y axis is [-1 1 0]. When yo specify the axes matrix, each colum represen...

2 months ago | 0

| accepted

Answered

How can I use the constantGammaClutter function to generate the clutter with no ULA

You can set the Sensor property to something like phased.IsotropicAntennaElement and it will generate clutter accordingly. HTH

How can I use the constantGammaClutter function to generate the clutter with no ULA

You can set the Sensor property to something like phased.IsotropicAntennaElement and it will generate clutter accordingly. HTH

2 months ago | 0

Answered

How to add zero infront of number

I don't think you can pad zero for a numeric number but you can do it when printing. For example fprintf('num = %02d\n',2) Is ...

How to add zero infront of number

I don't think you can pad zero for a numeric number but you can do it when printing. For example fprintf('num = %02d\n',2) Is ...

2 months ago | 0

| accepted

Answered

How can I use a matrix to be a loop variable

If you have somethign like mat = {mat1,mat2,mat3,mat4} You can do for m = 1:numel(mat) imshow(mat{m}) end HTH

How can I use a matrix to be a loop variable

If you have somethign like mat = {mat1,mat2,mat3,mat4} You can do for m = 1:numel(mat) imshow(mat{m}) end HTH

2 months ago | 0

| accepted

Answered

sine wave shifted 90 degree

If it's really just a sine wave, you can consider hook it up with a integrator. HTH

sine wave shifted 90 degree

If it's really just a sine wave, you can consider hook it up with a integrator. HTH

2 months ago | 0

Answered

How to determine the rotation matrix for rotating one vector to align with another ?

There is no special meaning of rotvv other than it's one of the implementation to rotate one vector to be parallel to another on...

How to determine the rotation matrix for rotating one vector to align with another ?

There is no special meaning of rotvv other than it's one of the implementation to rotate one vector to be parallel to another on...

2 months ago | 0

Answered

Replace two-way propagation channel with two one-way propagation channels

This may have to do with your target location. The channel delays signal based on the distance. However, when the travel time is...

Replace two-way propagation channel with two one-way propagation channels

This may have to do with your target location. The channel delays signal based on the distance. However, when the travel time is...

2 months ago | 0

Answered

XCORR function to find the lag time between two signals

We probably need a bit more info to understand why the lag is always the same. But by default xcorr returns the delay in lags, t...

XCORR function to find the lag time between two signals

We probably need a bit more info to understand why the lag is always the same. But by default xcorr returns the delay in lags, t...

2 months ago | 0

Answered

Error with the "Design an Internally Matched Ultra-wideband Vivaldi Antenna" example

You will need to open the example in MATLAB. In there you should have a button labled as "Open Example" or something close. When...

Error with the "Design an Internally Matched Ultra-wideband Vivaldi Antenna" example

You will need to open the example in MATLAB. In there you should have a button labled as "Open Example" or something close. When...

2 months ago | 1

| accepted

Answered

the element in radarObjects mean in Forward Collision Warning Using Sensor Fusion

The radarObject output is a detection, therefore it contains the information from the detected signal. If you have data from the...

the element in radarObjects mean in Forward Collision Warning Using Sensor Fusion

The radarObject output is a detection, therefore it contains the information from the detected signal. If you have data from the...

3 months ago | 0

Answered

Frost beamformer internal calculations

Yes, the code is available to see if you do edit phased.FrostBeamformer The constraint is simply to return a distortion less ...

Frost beamformer internal calculations

Yes, the code is available to see if you do edit phased.FrostBeamformer The constraint is simply to return a distortion less ...

3 months ago | 2

| accepted

Answered

simulating RWR in R2016a

If you open the example in MATLAB and click "Open Example" button, all files assoicated with the example will appear in the temp...

simulating RWR in R2016a

If you open the example in MATLAB and click "Open Example" button, all files assoicated with the example will appear in the temp...

3 months ago | 0

Answered

Possible to obtain ultra wide band monostatic radar model?

There is a wideband radar example at https://www.mathworks.com/help/phased/examples/modeling-a-wideband-monostatic-radar-in-a-m...

Possible to obtain ultra wide band monostatic radar model?

There is a wideband radar example at https://www.mathworks.com/help/phased/examples/modeling-a-wideband-monostatic-radar-in-a-m...

3 months ago | 1

| accepted

Answered

reading at UCA elements

Why would you say taht at least one antenna should not receive the signal? You are using isotropic element in the array so every...

reading at UCA elements

Why would you say taht at least one antenna should not receive the signal? You are using isotropic element in the array so every...

3 months ago | 0

| accepted

Answered

phased.RangeDopplerResponse axis scaling

The input of RangeDopplerResponse is a matrix reprsents fast time and pulses. Therefore, if you have a TDM MIMO radar, you can e...

phased.RangeDopplerResponse axis scaling

The input of RangeDopplerResponse is a matrix reprsents fast time and pulses. Therefore, if you have a TDM MIMO radar, you can e...

3 months ago | 0

| accepted

Answered

How to simulate automotive radar?

Have you looked at the following example? Would that be at the level you are interested? https://www.mathworks.com/help/phased/...

How to simulate automotive radar?

Have you looked at the following example? Would that be at the level you are interested? https://www.mathworks.com/help/phased/...

3 months ago | 0

| accepted

Answered

constantGammaClutter function usage?

These are high level steps but they look ok. I don't quite understand the last step though. What do you mean by "output of the c...

constantGammaClutter function usage?

These are high level steps but they look ok. I don't quite understand the last step though. What do you mean by "output of the c...

3 months ago | 0

Answered

Replicated.subarrays with taper

If you want to apply taper on the entire aperture, it might be easier to use the phased.PartitionedArray interface. You can then...

Replicated.subarrays with taper

If you want to apply taper on the entire aperture, it might be easier to use the phased.PartitionedArray interface. You can then...

3 months ago | 0

Answered

The sequence to call beamforming and receiver ?

In Phased Array System Toolbox, receiver models thermal noise at the receiving elements so beamformer should happen afterwards. ...

The sequence to call beamforming and receiver ?

In Phased Array System Toolbox, receiver models thermal noise at the receiving elements so beamformer should happen afterwards. ...

3 months ago | 0

Answered

I want to learn the phased array antenna with Matlab

I would start with the following page https://www.mathworks.com/academia/student_version.html HTH

I want to learn the phased array antenna with Matlab

I would start with the following page https://www.mathworks.com/academia/student_version.html HTH

4 months ago | 0