seisplotjs 3.1.3 | Documentation

seisplotjs

3.1.3

SacPoleZero ▸
- Static members
- .parse
- Instance members
- #poles
- #zeros
- #constant
- #gamma
- #mulFactor
- #sd
- #A0
- #toString
- #evalPoleZeroInverse
- #trimZeros
- #toText
- #calcForDisplay
geomspace
logspace
linspace

SacPoleZero

SAC style response file. This contains poles and zeros to represent the analog stage, plus a constant for the overall gain. See seisplotjs.transfer.convertToSacPoleZero() for conversion from a StationXML response to SacPoleZero.

new SacPoleZero(poles: Array<InstanceType<any>>, zeros: Array<InstanceType<any>>, constant: number)

Parameters

poles (Array<InstanceType<any>>)

zeros (Array<InstanceType<any>>)

constant (number)

Static Members

▸ parse(data)

src/sacpolezero.ts

Parses a string in sac polezero format into a SacPoleZero.

parse(data: string): SacPoleZero

Parameters

data (string) string to parse

Returns

SacPoleZero: SacPoleZero instance

Instance Members

▸ poles

src/sacpolezero.ts

Complex poles

poles

Type: Array<InstanceType<any>>

▸ zeros

src/sacpolezero.ts

Complex zeros

zeros

Type: Array<InstanceType<any>>

▸ constant

src/sacpolezero.ts

Scalar overall gain

constant

Type: number

▸ gamma

src/sacpolezero.ts

number of zeros added to convert to displacement, for debugging

gamma

Type: (number | undefined)

▸ mulFactor

src/sacpolezero.ts

hertz/radian factor, for debugging

mulFactor

Type: number

▸ sd

src/sacpolezero.ts

sensitivity accounting for gamma, for debugging

Type: number

▸ A0

src/sacpolezero.ts

normalization factor for poles and zeros accounting for gamma, for debugging

Type: number

▸ toString()

src/sacpolezero.ts

toString(): string

Returns

string

▸ evalPoleZeroInverse(freq)

src/sacpolezero.ts

evalPoleZeroInverse(freq: number): InstanceType<any>

Parameters

freq (number)

Returns

InstanceType<any>

▸ trimZeros(gamma)

src/sacpolezero.ts

trimZeros(gamma: number)

Parameters

gamma (number)

▸ toText()

src/sacpolezero.ts

toText(): string

Returns

string

▸ calcForDisplay(freqs)

src/sacpolezero.ts

Caclulates the frequency response from the given poles and zeros.

calcForDisplay(freqs: Array<number>): Array<InstanceType<any>>

Parameters

freqs (Array<number>) frequencies to compute

Returns

Array<InstanceType<any>>: frequency response

geomspace

src/sacpolezero.ts

geomspace(start: number, stop: number, num: number): Array<number>

Parameters

start (number)

stop (number)

num (number)

Returns

Array<number>

logspace

src/sacpolezero.ts

logspace(start: number, stop: number, num: number): Array<number>

Parameters

start (number)

stop (number)

num (number)

Returns

Array<number>

linspace

src/sacpolezero.ts

linspace(start: number, stop: number, num: number): Array<number>

Parameters

start (number)

stop (number)

num (number)

Returns

Array<number>