GPS INS integration software

Started by aamr in comp.dsp14 years ago 2 replies

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...


signal processing for real time gas measurements

Started by jalbme in comp.dsp15 years ago 2 replies

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...


Rate-gyro and compass: Kalman filter

Started by Marco Trapanese in comp.dsp14 years ago 10 replies

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...


Bistatic Radar Tracking with EKF

Started by hmahdi12 in comp.dsp16 years ago 1 reply

Hello I designed a bistatic radar tracker with Extended Kalman Fileter. The model I that used is the constant velocity model. The measurements...

Hello I designed a bistatic radar tracker with Extended Kalman Fileter. The model I that used is the constant velocity model. The measurements are: Doppler rang, Azimuth and Doppler frequency. the rang & Doppler measurements' covariance noise is low, but the Azimuth is too noisy. The state vector contained: x,vx,y,vy. My tracker works well when the distance between transmitter and receiver is ...


Acceleration signal and Kalman filter

Started by cpshah99 in comp.dsp8 years ago

Hello All Posting here after long time! I have acceleration data along with corresponding quaternions. The goal is to remove the bias...

Hello All Posting here after long time! I have acceleration data along with corresponding quaternions. The goal is to remove the bias from the acceleration by using quaternions. I found an implementation where accelerations ax and ay are converted to Euler angles (Phi and Theta) and quaternions are also converted to Euler angles (Phi, Theta and Psi). Then these Euler angles are pass...


Audio - Noise removal

Started by hurry in comp.dsp16 years ago 4 replies

Hi I am using Kalman filter in building a noise removal tool for speech signal. The questions I am faced with are: a) To find right...

Hi I am using Kalman filter in building a noise removal tool for speech signal. The questions I am faced with are: a) To find right estimate of Signal variance b) To find right estimate of Noise variance I do a rough estimate of signal variance from LPC analysis of the noisy i/p and amd updating noise variance during silence period. But, with this technique a short lived noise durin...


Kalman Filter - Possible Application

Started by Anonymous in comp.dsp18 years ago 8 replies

I've got a stationary robot (the master) which sends a sonar ping (4 times per second) to locate several mobile robots. The mobile...

I've got a stationary robot (the master) which sends a sonar ping (4 times per second) to locate several mobile robots. The mobile robot(s), upon sensing the master's ping, sends a return ping. The mobile robots are usually from 10 to 40 feet from the master and move about at 2 to 3 miles per hour. The master robot checks the elapased time from when it sent the ping to when the ping ...


Tracking the hand in occlusion

Started by omershad in comp.dsp14 years ago 8 replies

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...


Book review: "Time Series Analysis by State Space Methods"

Started by Rune Allnor in comp.dsp17 years ago

Hi all. Today I recieved my copy of Durbin & Koopman: "Time Series Analysis by State Space Methods" Oxford University Press,...

Hi all. Today I recieved my copy of Durbin & Koopman: "Time Series Analysis by State Space Methods" Oxford University Press, 2001. http://www.amazon.com/gp/product/0198523548/sr=8-1/qid=1154184779/ref=sr_1_1/103-3640117-4140620 ?ie=UTF8 The book is aimed at an audience in statistics and econometrics, but serves as an intro to general Kalman filters. I like the general philosophy a


Alpha Beta Gamma filter

Started by leo in comp.dsp14 years ago

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