Abstract—In wireless communications, smart antenna systems
that employ antenna arrays coupled with adaptive signal-pro-
cessing techniques at the basestation improve capacity, coverage,
and trunking efficiency.However, design and performance analysis
of smart antenna systems strongly depend on channel propaga-
tion characteristics of signals present at the antenna array, the
so-called vector channels. Here, variation of narrow-band vector
channels (spatial signatures) due to a moving terminal is studied in
