Hi all. I'm working with submerged vehicles; ROVs and AUVs. I need to learn about control and navigation systems for these things, and would...

Hi all. I'm working with submerged vehicles; ROVs and AUVs. I need to learn about control and navigation systems for these things, and would like pointers to literature. Anything, from "N&C for dummies" to the latest IEEE Journal articles, is of interest. I appreciate any help. Rune

Does any one know good material on tracking single sound source using only two microphones on a dummy head.I have seen kalman filter tracking...

Does any one know good material on tracking single sound source using only two microphones on a dummy head.I have seen kalman filter tracking for constant velocity targets etc in case of radar applications but i dont know how to use these in case of sound sources. Thanks

I need some reference material for tracking based on kalman filter in spherical coordinate system(Range,azimuth,elevation).I have seen...

I need some reference material for tracking based on kalman filter in spherical coordinate system(Range,azimuth,elevation).I have seen models which can track in 2D(cartesian coordinates).I would be grateful if someone can give any reference material for 3d tracking(cartesian or spherical coordinates).

hello friends, i am using blackfin adsp bf537 for embedded and signal processing purpose. application is multiple gas analyzer and making...

hello friends, i am using blackfin adsp bf537 for embedded and signal processing purpose. application is multiple gas analyzer and making first prototype of it.i want to smooth digital signal and to remove noise. so after analog to digital converter, i will use bf537. but, i am still puzzling for signal processing stuff. should i have to use kalman filtering or moving average filtering for sm...

Hi guys, I approximately measure 3D acceleration of the center of mass of an athlete by means of a triaxial inertial measurement unit placed on...

Hi guys, I approximately measure 3D acceleration of the center of mass of an athlete by means of a triaxial inertial measurement unit placed on the sacrum during a 100m sprint running. Accelerations are then expressed with respect to an earth-fixed global reference frame (vertical axis is defined by gravity). I have a problem: during the flight phase, the skin has a wobbling movement and it accel...

Hello, I am doing a project in which i need to implement acoustic noise canceller which uses only a single mic.(essentially it is a "Feedback...

Hello, I am doing a project in which i need to implement acoustic noise canceller which uses only a single mic.(essentially it is a "Feedback ANC") the algorithm is based on a Kalman filter combined with a parameter estimation. Also, because of the single sensor, the reference signal(the unwanted noise) is extracted from the error signal. the unwanted signal is modeled as autoregressive st...

> Contrary to the beliefs of some, the MathWorks isn't on high, and MatLab > isn't an extension of the Bible. I would trust them for examples,...

> Contrary to the beliefs of some, the MathWorks isn't on high, and MatLab > isn't an extension of the Bible. I would trust them for examples, but > don't take their documentation for anything but a means of selling you > copies of MatLab. The link I posted is a user contribution, not an example from the Mathworks, so I don't trust it entirely. However the Wikipedia article on EKF's seems

dsp@myallit.com wrote: > > Contrary to the beliefs of some, the MathWorks isn't on high, and MatLab > > isn't an extension of the Bible. I...

dsp@myallit.com wrote: > > Contrary to the beliefs of some, the MathWorks isn't on high, and MatLab > > isn't an extension of the Bible. I would trust them for examples, but > > don't take their documentation for anything but a means of selling you > > copies of MatLab. > > The link I posted is a user contribution, not an example from the > Mathworks, so I don't trust it entirely. However the

On Jul 23, 1:02 am, d...@myallit.com wrote: > > Contrary to the beliefs of some, the MathWorks isn't on high, and MatLab > > isn't an...

On Jul 23, 1:02 am, d...@myallit.com wrote: > > Contrary to the beliefs of some, the MathWorks isn't on high, and MatLab > > isn't an extension of the Bible. I would trust them for examples, but > > don't take their documentation for anything but a means of selling you > > copies of MatLab. > > The link I posted is a user contribution, not an example from the > Mathworks, so I don't trust

I'm beginning a University research project that will be doing some pretty intense signal processing (a software defined radio, including a...

I'm beginning a University research project that will be doing some pretty intense signal processing (a software defined radio, including a 17-state Extended Kalman Filter) on an FPGA. I would like to ask anybody with experience in this area to comment on whether VHDL or Verilog would be an appropriate choice for this DSP design. Is there much difference in the logic synthesis or ease of prog...

Hello All, I want to use the kalman filter for the tracking of the hand in case of occlusion. Hand can be moved freely in the environment and...

Hello All, I want to use the kalman filter for the tracking of the hand in case of occlusion. Hand can be moved freely in the environment and the occlusion can be with the other hand or with the face. In case of occlusion, I have to predict the hand or face from the previous motion. For the simple case, I am drawing a rectangle on the corners of the hand and face and want to predict the rectan...

Hello, I was hoping that someone might know how to compute an error covariance matrix for an H infinity filter when the noise terms are known...

Hello, I was hoping that someone might know how to compute an error covariance matrix for an H infinity filter when the noise terms are known to be uncorrelated white and Gaussian. I suspect that P (defined below) is the error covariance matrix since it becomes that when configured to be equivalent to a Kalman filter. However, based on my understanding of H infinity theory P is not an e...

Hello All, In the world of astronomy we currently have comet Lulin which will be observable in binoculars and telescopes for another couple of...

Hello All, In the world of astronomy we currently have comet Lulin which will be observable in binoculars and telescopes for another couple of months. So I set up my scope to take a picture of it. So the DSP part comes in two ways. First since the Earth rotates you need to have your scope track the stars to counter the rotation. Even with a moderate quality "clock drive" on a scope, the...

Hi, I have an IMU/GPS unit and wonder if there is any commercial software to do the integration. Currently, the starter kit software reads...

Hi, I have an IMU/GPS unit and wonder if there is any commercial software to do the integration. Currently, the starter kit software reads angular velocities and linear accelarations in addition to C/A GPS data. Given the relatively long time of kalman filtering use to integrate GPS and INS, I expect the availability of an integration software that accepts the raw data and produces attitude ang...

I want to use Alpha-Beta-Gamma Filter (or Kalman Filter) for the following problem: I have the position and velocity of products on the...

I want to use Alpha-Beta-Gamma Filter (or Kalman Filter) for the following problem: I have the position and velocity of products on the conveyor in time t=t1. How can I estimate the position in time t=t1+T (T is scan time) if I know acceleration a and max. velocity for this product? The product is on the conveyor. Conveyor can change the speed every scan. With accelerati

I'm working on a robot and have gotten a 5 degrees of freedom sensor - x, y and z acceleration, roll, and pitch gyro to help with navigation. I...

I'm working on a robot and have gotten a 5 degrees of freedom sensor - x, y and z acceleration, roll, and pitch gyro to help with navigation. I also have encoders on the drive shaft for the left and right side of the robot which is using a tank drive system. As well as two encoders (one on each side of the robot) that are free running wheels. The problem is that I'm seeing drift on the gyro, ...

Hi to all, I have an underwater vehicle with an electronic compass and a rate-gyro. You know, the compass has a good long-term accuracy but...

Hi to all, I have an underwater vehicle with an electronic compass and a rate-gyro. You know, the compass has a good long-term accuracy but it's slow and noisy on short-term (there are several DC brushless motors in the nearby). On the other side, the rate-gyro is more accurate on the short-term and for not-so-slow turns. I want to mix up the two values in order to get a more accurat...

Hi , This is my first post on this forum, so I apologize if I have posted in wrong area. I want to measure the angle of a rotating crank arm,...

Hi , This is my first post on this forum, so I apologize if I have posted in wrong area. I want to measure the angle of a rotating crank arm, using an accelerometer. I have XY acceleration data, and a digital one pulse per rev signal. Could a Kalman filter be implemented using this data? Cheers XYZ

Hi, Im a fourth year student and am currently working on a project where I am attempting to track the position of a racecar in the form of a...

Hi, Im a fourth year student and am currently working on a project where I am attempting to track the position of a racecar in the form of a strapdown INS. I am trying to use a 2-axis accelerometer(x,y), z-axis gyroscope and also have GPS coordinates available. I have been directed to look into Kalman filtering however after much reading I am still unsure about how to actually apply this to the d...

Hi at all I'm currently designing a fullstate feedback controller with the following state space A = [ 0.9999066, -0.0069878;-0.0008812 ...

Hi at all I'm currently designing a fullstate feedback controller with the following state space A = [ 0.9999066, -0.0069878;-0.0008812 0.9178842]; B = [-0.0337198 0.0118804]'; C = [-1.0340817 -0.0915291]; D = [0]; and the feedback gains K = [-2.0831 0.9667]. The controller itself together with the kalman filter to estimate the states works without any problems. However, to use a ...