Recent content by uglyoldbob

I have started working on trying to design some better antennas for the cave radios in use for radiolocation and general caver communications. Most of the antennas I have seen are loop antennas operating at 65 or 130-ish kHz. I am open to all sorts of antennas. Of course no matter what...

Here are some motors I am comparing. The difference here is price (and obviously additional hardware on the more expensive one) There is the CIM motor, according to the specs: http://www2.usfirst.org/2005comp/Specs/CIM.pdf Torque, speed, current, power, efficiency 0, 5310, 2.7, 0, 0 (free)...

I recently started doing research to build one of these (popular?) two-wheeled balancing things. (A segway clone) I don't know how to calculate the proper size motors (a pair of motors) for this. I know you have to consider the torque and rotational speed required to size the motor. Desired...

Every place explaining the kalman filter seems to use completely different variable names which makes it difficult for me to understand. You have the measured state and the actual state. Then there is a state transition model, a control input model, process noise, and observation noise...

I have been doing some reading on Kalman filters trying to figure where to start. I have done some college level calculus, but clearly I don't currently know enough to understand the math involved. Where is a good place for me to start? I downloaded a copy of the linear algebra book by Jim...