The documentation of function “TF_add_near

関数TF_add_near_field マニュアル

(The documentation of function TF_add_near_field)

Last Update: 2024/12/27

◆機能・用途(Purpose)

近地項からの寄与

\begin{array}{rcl} h (t) & \equiv & A \int_{t_{s t}}^{t_{e n}} τ f (t - τ) d τ \\ (1) & = & - A [t_{e n} F_{1} (t - t_{e n}) - t_{s t} F_{1} (t - t_{s t})] - A [F_{2} (t - t_{e n}) - F_{2} (t - t_{s t})] \end{array}

を波形に加算する。ここで

f (t)

は震源時間関数、

F_{1} (t)

はその1階積分、

F_{2} (t)

は2階積分、

A

t_{s t}

t_{e n}

は定数とする。
Add the contribution from a near-field term (Eq.

1

) to a waveform, where

f (t)

is a source time function,

F_{1} (t)

and

F_{2} (t)

are its 1st- and 2nd-order integrals, respectively, and

A

t_{s t}

, and

t_{e n}

are constants.

◆形式(Format)

#include "WIHM_sub/timefunc.h"
inline void TF_add_near_field
(struct sequence seq,
const struct sequence stfun_int1,const struct sequence stfun_int2,
const double t_st,const double t_en,const double amp)

◆引数(Arguments)

seq	近地項の寄与を加算したい時系列データ。関数内で値が置き換わる。 The time series data to which the contribution from the near-field term is to be added. The values of this time series data are replaced within the function.
stfun_int1	震源時間関数 $f (t)$ の1階積分 $F_{1} (t)$ の波形。 The waveform of $F_{1} (t)$ , which represents the 1st-order integral of a source time function $f (t)$ .
stfun_int2	震源時間関数 $f (t)$ の2階積分 $F_{2} (t)$ の波形。 The waveform of $F_{2} (t)$ , which represents the 2nd-order integral of a source time function $f (t)$ .
t_st	積分区間の先頭時刻( $1$ 式の $t_{s t}$ )。 The start time of the integral; $t_{s t}$ in Eq. ( $1$ ).
t_en	積分区間の末尾時刻( $1$ 式の $t_{e n}$ )。 The end time of the integral; $t_{e n}$ in Eq. ( $1$ ).
amp	( $1$ )式の係数 $A$ 。 The coefficient $A$ of Eq. ( $1$ ).

◆動作(Behaviour)

引数seqに(

1

)式の時系列データを加算する。
Add a time series data expressed by Eq. (

1

) to argument seq.