变换器

Some novel methods and techniques of optical image encryption based on joint transform correlator were put forward ,and simulation results were demonstrated.

提出了几种基于联合变换相关器的光学图像加密方法，并进行了计算机仿真与验证，对这些方法进行了分析比较研究。

Finally, the way of the double-JPS interference in order to simplify the architecture and the processing program of joint transform correlator are proposed.

最后，为了简化联合变换相关器的结构和处理过程，提出了用双功率谱干涉的方法进行目标识别。

In addition, the Wavelet analysis is applied to inspect the singularity of the measured current, and an adaptive signal-noise decomposer for AOCT is designed.

此外，为了能够顺利将在稳态测量期间所获得的自适应校正系数应用于暂态测量中，论文应用小波变换来检测电流信号的奇异性，还应用自适应滤波技术设计了一种用于OCT的自适应信噪分离器。

I also produced a corresponding demodulator can achieve the above-mentioned inverse transform function.

我另外制作了相应的解调器，可以实现上述功能的逆变换。

This paper brought forward some new design schemes based on the principle and signal processing algorithm of velocity detector, and introduced the hardware construction of the velocity detector based on Depolarizer and S3C2410A microprocessor. The high-efficient ARM program of radical 4-FFT was designed according to the architecture characters of ARM core. In the process of code designing, the instruction scheduling and register allocation were controlled subtly, and the fixed-point number's storage format and computing method of float number were provided. Barrel shifter and 5-lever pipeline were fully utilized and the pipeline interlock was avoided.

针对多普勒测速仪的基本原理和信号处理算法提出了新的设计方案，介绍了由多普勒收发前端和三星S3C2410A处理器构成的测速仪的硬件结构；并结合ARM内核设计特点实现了基4时间抽取快速傅里叶变换算法，针对大多数ARM处理器硬件上不支持浮点运算，提出了把浮点数以定点数格式存储和计算的方法，充分利用桶型移位器和5级流水线，避免了流水线互锁问题。

The directivity of emitter by changing the number and relative location of ultrasonic transducers are simulated.

通过改变换能器数目及之间的相对距离，模拟了超声发射阵的空间指向性。

The computer simulation results show that the estimator based on transform domain is better than the other two.

并且对不同的估计方法作了仿真，结果表明基于变换域的信道估计器要略优于另外两种方法。

In this paper,we first introduce the research background and theory foundation of the project.Then we present a new technique for designing theorem prover which mainly based on transformation and substitution for Pointer Logic,and we have implemented this technique in a tool called APL.As an extension of Hoare logic, Pointer Logic can be used for accurate pointer analysis of pointer programs.

在本文中，我们首先介绍了项目的研究背景和理论基础，然后提出了一种为指针逻辑来设计自动定理证明器的新技术，这项技术主要是基于变换和替代，我们已经在一个被称为APL的工具中实现了该技术。

The dynamic star simulator is a detect device which can simulate night sky on the ground, so as to test the function of the star map identification algorithm of the star sensor, the dynamic star simulator can realize stellar database query, data coordinates transformation and transmission and the star map display updating, the star map dynamic display system is one of the core component of the dynamic star simulator, as well as the key component of the dynamic star simulator realizes miniaturization and dynamic.

动态星模拟器非一类反在地里上模拟星空，以便闭于星迟钝器的星图识别算法入行功能测试的检测拆备，而星图动态现示体解则非动态星模拟器外实现星体数据库快快检索、立本变换、数据传收和星图现示刷旧控造的外口部件之一，也非动态星模拟器实现大型化、动态化的闭键部件之一。

An integral expression for the time domain output response of traveling wave electrooptic phase modulator is derived by using the scalar wave equation and Fourier transform technique.

从标量波动方程出发，采用傅里叶变换的方法，导出了行波电光相位调制器的时间域输出响应的计算公式。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。