cancellation circuit

cancellation circuit

[kan·sə′lā·shən ‚sər·kət]
(electronics)
A circuit used in providing moving-target indication on a plan position indicator scope; cancels constant-amplitude fixed-target pulses by subtraction of successive pulse trains.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
As can be seen, at the beginning, the offset cancellation circuit is interim and setting the output of the DCCs and after this transition time the output signal is reliable.
In this paper, we presented the design and testing for an unprecedented ALE heart sound cancellation circuit developed on the FPGA DE2-70 education board for electronic stethoscopes.
The feedforward linearizer consists of two fundamental circuits -- the signal cancellation circuit and the error cancellation circuit.
Figure 3 shows a detailed view of the readout channel, which includes a dark current cancellation circuit, switched-capacitor integrator, and sample-and-hold circuit.
Feed-forward linearization really utilizes two circuits: an input signal cancellation circuit and a distortion (or error) cancellation circuit.
TABLE I PERFORMANCE OF THE MIXERS AND THEIR 0[degrees] + 180[degrees] SECOND-ORDER CANCELLATION CIRCUIT IF input (MHz) 869 to 895 LO input (MHz) 1060 to 1100 RF output (MHz) 1930 to 1990 Single-mixer LO drive (dBm) 18 Second-order cancellation (dBm) 21 Mixer 1 Mixer 2 Cancellation Circuit Conversion loss (dB) 7.5 7.6 8.5 Input [IP.sub.3] (dBm) 38 37 42 P1dB (dBm) 23 23 27 L-R isolation (dB) 26 27 52 L-I isolation (dB) 30 30 40
For example, one can implement the above self-interference cancellation idea completely in analog domain using noise cancellation circuits reported by Radunovic et al.
A voice network can be retrofitted with echo cancellation circuits, but these require expensive and difficult infrastructure modifications, which increase the cost of implementing an ATM network.