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- (transitive) To remove (goods or containers) from a railroad flatcar using special equipment.
- To use a deramp process in order to clean up an electronic signal.
- a phase deramping function
deramp (plural deramps)
- A process for cleaning up electronic signals such as radar, in which a received signal is mixed with a reference signal in order to highlight differences in frequencies.
- 2001, Philippe Lacomme, Air and Spaceborne Radar Systems: An Introduction, →ISBN, page 223:
- In the deramp process, the principle of continuous radar with a linearly frequency-modulated wave is applied to a pulsed radar.
- 2003, Ronald G. Driggers, Encyclopedia of Optical Engineering, →ISBN:
- Deramp processing entails mixing (i.e., multiplying) the return signal with two sinusoidal carriers of frequency fc and then low-pass-filtering the two resulting signals.
- 2012, Robin A. Vaughan, Microwave Remote Sensing for Oceanographic and Marine Weather-Forecast Models, →ISBN, page 54:
- The trick with full deramp processing is to mix the echo with a replica of the transmitted chirp signal rather than with a fixed frequency tone (figure 4).