sugain

来自「seismic software,very useful」· 代码 · 共 21 行

SUGAIN - apply various types of gain to display traces
sugain <stdin >stdout [optional parameters]
Required parameters:
	none (no-op)
Optional parameters:
	tpow=0.0	multiply data by t^tpow
	epow=0.0	multiply data by exp(epow*t)
	gpow=1.0	take signed gpowth root of scaled data
	wagc=0.5	agc window in seconds (use if agc=1 or gagc=1)
	trap=0.0	zero any value whose magnitude exceeds trapval
	clip=0.0	clip any value whose magnitude exceeds clipval
	qclip=1.0	clip by quantile on absolute values on trace
	scale=1.0	multiply data by overall scale factor
Operation order:
out(t) = scale * BAL{CLIP[AGC{[t^tpow * exp(epow * t) * in(t)]^gpow}]}
Notes:
	The jon flag selects the parameter choices discussed in
	Claerbout's Imaging the Earth, pp 233-236.
	Selected traces can be marked as not to be gained by
	using sumark to set the tr.mark header field to 1.