Python Numpy或Pandas线性插值用于与Datetime相关的值

我的数据看起来如下,但我也可以控制它的格式.基本上,我想使用带有Numpy或Pandas的Python来插入数据集,以实现逐秒插值数据,从而使分辨率更高.

因此,我想在保持原始值的同时,在我当前拥有的每个实际值之间进行线性插值并生成新值.

我如何用Pandas或Numpy来实现这一目标？

举个例子,我有这种类型的数据:

       TIME               ECI_X            ECI_Y          ECI_Z
 2013-12-07 00:00:00, -7346664.77912, -13323447.6311, 21734849.5263,@
 2013-12-07 00:01:00, -7245621.40363, -13377562.35, 21735850.3527,@
 2013-12-07 00:01:30, -7142326.20854, -13432541.9267, 21736462.4521,@
 2013-12-07 00:02:00, -7038893.48454, -13487262.8599, 21736650.3293,@
 2013-12-07 00:02:30, -6935325.24526, -13541724.0946, 21736413.9937,@
 2013-12-07 00:03:00, -6833738.23865, -13594806.9333, 21735778.2218,@
 2013-12-07 00:03:30, -6729905.37597, -13648746.6281, 21734705.6406,@
 2013-12-07 00:04:00, -6625943.01291, -13702423.5112, 21733208.9233,@
 2013-12-07 00:04:30, -6521853.17291, -13755836.5481, 21731288.1125,@
 2013-12-07 00:05:00, -6419753.85176, -13807871.3011, 21729016.1386,@
 2013-12-07 00:05:30, -6315415.32918, -13860754.6497, 21726259.4135,@
 2013-12-07 00:06:00, -6210955.33186, -13913371.1187, 21723078.7695,@
 ...

而且我希望它能够排在第二位 - 即

 2013-12-07 00:00:00, -7346664.77912, -13323447.6311, 21734849.5263,@
 2013-12-07 00:00:01, -7346665.10000, -13323448.1000, 21734850.1000,@
 ...
 2013-12-07 00:00:59, -7346611.10000, -13323461.1000, 21734850.1000,@
 2013-12-07 00:01:00, -7245621.40363, -13377562.3500, 21735850.3527,@

请告诉我一个如何实现这一目标的例子.谢谢!

我试过这个:

#! /usr/bin/python

import datetime
from pandas import *

first = datetime(2013,12,8,0,0,0)
second = datetime(2013,12,8,0,2,0)
dates = [first,second]
x = np.array([617003.390723, 884235.38059])
newRange =  date_range(first, second, freq='S')
ts = Series(x, index=dates)
ts.interpolate()
print ts.head()

#2013-12-08 00:00:00, 617003.390723, -26471116.2566, 3974868.93334,@
#2013-12-08 00:02:00, 884235.38059, -26519366.9219, 3601627.52947,@

如何使用"newRange"在"x"中的实际值之间创建线性插值？