four-quadrant multiplier

four-quadrant multiplier

[¦fȯr ¦kwäd·rənt ′məl·tə‚plī·ər]
(computer science)
A multiplier in an analog computer in which both the reference signal and the number represented by the input may be bipolar, and the multiplication rules for algebraic sign are obeyed. Also known as quarter-square multiplier.
References in periodicals archive ?
Sawigun proposed a four-quadrant multiplier with a power supply of 1.5 V but with relatively high power dissipation of about 290 [micro]W [6].
The functional block illustrated in Figure 3 represents a four-quadrant multiplier (FQM).
Equation 15 can be implemented in baseband, or in a relatively low intermediate frequency (in an analog way) using operational amplifiers and analog four-quadrant multipliers.
Gilbert, "A Precise Four-Quadrant Multiplier with Subns Response," IEEE, J.