Page 79 - Electrical Engineering Dictionary

Multiplying a signal x[n] by the finite dura- dividual links. Base dynamic parameters are
tion window signal w[n] leads to the trian- subject to the identification in adaptive con-
gularly scaled, finite duration signal z[n]= trol schemes applied to robot control.
x[n]w[n], which is then processed. Window-
ing is used in the spectral analysis of mea-
sured signals and the design of finite impulse base frame a frame attached to the non-
response, linear time invariant systems. moving base of the manipulator. Sometimes
the base frame is called the reference frame.
baryon a collective term for all strongly
interacting particles with masses greater than base quantity See per-unit system.
or equal to the mass of the proton. These
include the proton, neutron, and hyperons. base register the register that con-
tains the component of a calculated address
base (1) the number of digits in a number that exists in a register before the calcu-
system (10 for decimal, 2 for binary). lation is performed (the register value in
(2) one of the three terminals of a bipolar “register+immediate” addressing mode, for
transistor. example).
(3) a register’s value that is added to an
immediate value or to the value in an index base register addressing addressing us-
register in order to form the effective address ing the base register. Base register is the
for an instruction such as LOAD or STORE. same as base address register, i.e., a general-
purposeregisterthattheprogrammerchooses
base address (1) an address to which to contain a base address.
an index or displacement is added to locate
the desired information. The base address base speed corresponds to speed at rated
may be the start of an array or data structure, torque, ratedcurrent, andratedvoltagecondi-
the start of a data buffer, the start of page in tions at the temperature rise specified in the
memory, etc. rating. It is the maximum speed at which
(2) as a simpler alternative to a full vir- a motor can operate under constant torque
tual memory, the code space or data space of characteristics or the minimum speed to op-
a program can be assumed to start at a con- erate at rated power.
venient starting address (usually 0) and relo-
cated in its entirety into a continuous range base station the fixed transceiver in a mo-
of physical memory addresses. Translation bile communication system. See also fixed
of the addresses is performed by adding the station (FS).
contents of an appropriate base address reg-
ister to the user address. base vector a unit vector in a coordinate
direction.
base dynamic parameters a set of dy-
namic parameters that appear in the canon- baseband in communication systems, the
ical equations of motion. Canonical equa- information-carrying signal that is modu-
tions of motion of robot dynamics do not in- lated onto a carrier for transmission.
clude linearly dependent equations. These
are eliminated by making use of various pro- baseband signal in digital communica-
cedures. As a result, dynamic equations of tions, a signal that appears in the transmitter
motion contain only independent equations prior to passband modulation. For example,
which are used for the purpose of control. in the case of pulse amplitude modulation,
P
Eachbasedynamicparameterisalinearcom- s(t) = i b i p(t − iT ) is a baseband signal,
bination of the inertial parameters of the in- where b i is the transmitted symbol at time i,

c
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