3.25 filter specifications. an analog signal, bandlimited to 20 hz is corrupted by high-frequency noise. the spectrum of the noise is from 25 hz to 35 hz. the noisy analog signal is sampled at 60 hz. a digital lowpass filter is to be designed so as to remove the noise from the signal. what would you choose for the desired frequency response d(ω) and weighting function w(ω)? sketch those functions for 0 ≤ ω ≤ π where ω is normalized frequency (radians/sample).

We all use gps today, even if we don't drive yet. i bet you have been in the car with a parent and they have asked you to get out your phone to find a specific location. in your car, on the phone, you are using a very sophisticated technology. gps satellites circle the earth twice a day in a very precise orbit and transmit signal information to earth. gps receivers take this information and use trilateration to calculate the user's exact location. essentially, the gps receiver compares the time a signal was transmitted by a satellite with the time it was received. the time difference tells the gps receiver how far away the satellite is. now, with distance measurements from a few more satellites, the receiver can determine the user's position and display it on the unit's electronic map. what type of signal is utilized by the gps satellite?

Agas contained within a piston-cylinder assembly undergoes three processes in series: process 12: compression with pv= constant from 1 bar and 1 liter to 4 bar. process 23: constant pressure expansion to 1 liter. process 31: constant volume calculate the pressure and volume at each state, and sketch the processes on a p-vdiagram labeled with pressure and volume values at each numbered stat

Blank liquids and gases exert a buoyant force on objects placed in them