Solutions for Protoype and Low-Volume Systems

The MVR Series of Muzzle-Velocity Radars are Doppler-CW transceivers that measure the velocity of viewed objects such as projectiles. They use phase-locked millimeter-wave transmitter-receivers along with an integrated radome-protected antenna to illuminate objects under investigation. An optical boresighting aid provides alignment assistance for the narrow radiation patterns. Reflected signals from the target are received by the antenna and mixed to produce a video output equal to the Doppler spectrum of the target. A low-noise, variable gain video amplifier can drive a 50-ohm cable up to +1 volt output. The video amplifier has a feed-forward DC offset compensation circuit that extends the Doppler frequency response from under 1 Hz to over 2 MHz. An integrated DMM and LCD display on the front panel monitors various test points within the sensor to verify proper operation. The extremely rugged design allows the MVRs to withstand high acousitic shock environments so they can be located in close proximity to the projectile source.