The error of the decimate in time (DIT) radix-2 fast Fourier transform (FFT) is analyzed, where the data format is two's complement.
分析了按时间抽取（DIT）基-2快速傅里叶变换（FFT）的误差，数据格式为二进制补码。
The decimation in time (DIT) radix-2 FFT algorithm is analyzed in details with input in normal order and output in bit-reversed order by the binary method.
运用二进制方法对按时间抽取顺序输入倒序输出的基2FFT算法进行了较为详细的分析和论证。
The radix-2 decimation-in-time algorithm based on 16-bit fixed-point operation and pipeline architecture are adopted in the core module IFFT(Inverse Fast Fourier Transform).
核心模块快速傅立叶逆变换（IFFT）采用基于16位定点运算的基-2时间抽取算法和流水线结构。
In binary system the radix is 2, and the positions to the left or right of the binary point carry weight increasing or decreasing in power of 2.
二进制系统的基数为2，且从小数点每左进一位或者右退一位，其权增加或者减少2幂次。
Aimed at the less detection precision and the more errors arising from the common electric parameter detecting method, this paper proposes a synchronous sampling method and radix 2 FFT algorithm.
针对普通电参数检测方法检测精度低、误差大的缺点，提出了一种同步采样法和基2FFT算法。
The identification of Radix scutellariae was silica gel G plate, n-butanol-glacial acetic acid-water(7:1:2) as the development reagent, chloride ferric(1%) as color developing reagent.
后者黄芩的鉴别：硅胶G薄层板，正丁醇-冰乙酸-水（7：1：2）为展开剂，1%三氯化铁乙醇溶液为显色剂；
CONCLUSIONS: Radix Astragali injection can inhibit the proliferation of human nasopharyngeal carcinoma CNE-2 cell line and induce its apoptosis.
结论：黄芪注射液可抑制人鼻咽癌cne - 2细胞株增殖并诱导其凋亡。
OBJECTIVE: to study the inhibitory action of Radix Astragali injection on human nasopharyngeal carcinoma CNE-2 cell line in vitro.
目的：研究黄芪注射液对人鼻咽癌cne- 2细胞的体外抑制作用。
This paper studies the parallelism of the different stages of decimation in time radix 2 FFT algorithm, designs the butterfly and scramble kernels and implements 2d FFT on GPU.
本文研究了基2的时域抽取快速傅立叶变换各阶段的并行性，并据此设计了相应的蝶形和倒序运算核，在GPU上实现了二维fft运算。
Using the established method, fingerprints of 14 Radix Ophiopogonis samples and 2 Radix Liriopes samples were obtained, and the similarities of the Radix Ophiopogonis samples were calculated.
利用所建立方法，获取了14批麦冬和2批类似药材山麦冬的指纹图谱，并计算了14批麦冬的相似度。
Objective To study the composition and yield of the volatile oil of radix kadsurae coccineae by 2 different extraction methods.
目的研究黑老虎药材用2 种不同提取方法所得挥发油成分及收率。
This FFT algorithm can be used with arbitrary integer dimensions. For 1-dimension, the algorithm will be simplified as the well-known DIF vector radix 2 FFT.
该FFT算法适合于维数为任意整数的情况，当维数为1时，算法退化为著名的频域抽取向量基2 FFT算法。
These algorithms are aimed at reducing the number of repeated iterative operations. The use of radix 4 leads to 2-digit results for each iterative operations.
基本出发点是减少运算的重复迭代次数，采用每次运算能得到二位结果的算法而不是常规的每次只能得到一位结果的二进制算法。
These algorithms are aimed at reducing the number of repeated iterative operations. The use of radix 4 leads to 2-digit results for each iterative operations.
基本出发点是减少运算的重复迭代次数，采用每次运算能得到二位结果的算法而不是常规的每次只能得到一位结果的二进制算法。
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