降低速度

After doing that, the paper points out the universal architectures of the high-speed real-time signal processing system and describes how to implement them.. Since FFT plays an important role in digital signal processing, implementing FFT with FPGA is presented and the total realization graph is designed. For improving speed and decreasing computing complexity, high efficiency multiplier algorithm is used to realizing twiddle factor multiplier of butterfly processing unit.

最后本文描述了数字信号处理系统结构的实现方法，指出常见的高速、实时信号处理系统的四种结构；由于FFT算法在数字信号处理中占有重要的地位，所以本文提出了用FPGA实现FFT的一种设计思想，给出了总体实现框图：重点设计实现了FFT算法中的蝶形处理单元，采用了一种高效乘法器算法设计实现了蝶形处理单元中的旋转因子乘法器，从而提高了蝶形处理器的运算速度，降低了运算复杂度。

And this causes a frequency change Δf. The resonant point tracing algorithm describes how to detect Δf. So it can introduce a feedback frequencydifference -Δf through a closed loop to realize the resonant state o In the digitaldetection scenario, using staircase wave to replace saw tooth wave, it can overcome a lot of shortcomings in the analog system. The character of the staircase wave affects the detection precision directly. This thesis analyzes a high precision scenario producing a staircase waveform in detail. It can reduce the number of the bits in D/A converter greatly. This thesis proposes another method to improve the detection precision in case that the A/D converter has comparatively little number of bits, while this method will not increase the cost of the system greatly.

在谐振式光纤陀螺中，环形谐振腔的旋转使得谐振腔的谐振频率发生了变化，从而产生了一个与旋转速度成正比的频率变化值△f，谐振点跟踪算法描述了如何检测出△f，从而可以通过闭环在系统中引入反馈频差-△f，实现光路的谐振状态；在数字闭环检测方案中，用阶梯波作为反馈信号来代替锯齿波，可以克服原来模拟系统中锯齿波的很多缺点，阶梯波的性能直接影响着系统的测量精度，本论文详细分析了一种高精度阶梯波生成方案，使得所需D／A的位数大大降低；本文还分析了A／D转换器对系统测量精度的影响，提出了一种A／D转换器位数较少的情况下提高系统测量精度的措施，同时又不会增加太多的系统成本。

In order to overcome the shortcoming brought from the calculation of the trigonometric function, the approach of numerical equivalent, which remove the trigonometric function from the nonlinear equations of SHEPWM, is presented in this dissertation.

在特定消谐方程组中含有大量的三角函数，方程求解时，大量的三角函数计算限制方程求解速度的同时也降低了求解精度。

Hence, it is proposed to allow an appropriate amount of sand production during recovery of unconsolidated sandstone gas reservoir s.

疏松砂岩气藏在开采过程中容易出砂，采取完全防砂的方式进行开采，既增加了气井的成本，又降低了气藏的开发速度。

One quick way to solve this problem is to use fast digital servos to make the motion differential unperceivable.

最便捷的解决方法是使用高速数字舵机，把速度的差异降低到感觉不到的程度。

With deepening reform of our country's social security system,for many pension schemes,the growth has speeded up,the scale has expanded.But the longevity risk,from the unprojected decreasing of mortality rate,has more and more influence on pension scheme and has theory and practice importance for studying it.

随着我国社会保障体系改革的深入，各种养老金计划的发展速度越来越快，规模也越来越大，而由死亡率非预测性的降低导致的长寿风险对养老金计划的经营带来的威胁也越来越重，对长寿风险的研究具有重要的理论及现实意义。

The results also revealed a tendency of decrease in the fractal dimension with the increase of floc size, which is resulted from the unproportionate growth between the floc size and the number of the primary particles contained in the flocs.

同时计算结果表明，絮凝体的分形维数有随其粒径增大而逐渐降低的趋势，其原因是絮凝体的成长粒径与絮凝体中所包含的初始颗粒增长速度不成比例。

In order to improve the speed of whole ADC and largely reduce the numbers of comparators, a type of high speed voltage comparator is designed.

设计了一种高速的电压比较器来提高整个转换器的速度，并且大大降低了比较器的数目。

This means that even bows in shorter draw lengths and lower draw weights will still provide plenty of velocity to penetrate the ribcage of a Whitetail Deer and other large game.

这就意味着，即使在较短的弓箭提请长度和重量降低提请仍将提供足够的速度渗透到一个ribcage鹿Whitetail及其他大型游戏。

During the magmas ascendedand intruded, the high-energy, quick ascending primary mantle magmas with xenolith andhigh-pressure megacrysts didn't react with the crustal matter, which formed products, such ascone sheets.

在岩浆上升侵位的过程中，能量高的快速上升的含有岩石包体和高压巨晶的幔源原生岩浆没有与地壳物质发生作用，其形成的产物如锥状岩席；在此之后，岩浆能量、上升速度的降低促使原生岩浆与围岩发生轻微的同化混染作用，其产物如火山熔岩和火山颈。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。