| 1. | However , if you plan to use a laser collimator in step 3 , you should be aware that even a tiny misadjustment here will throw off the final collimation
然而，如果你计划在第3步中继续使用激光校准器的话，你就要仔细调整了，否则差之毫厘，谬以千里。 |
| 2. | Analysis and simulation results show that the new algorithm provides faster convergence at early stages of iteration and ensures less final misadjustment compared with the cma
理论分析和仿真实验均表明该算法与恒模算法相比，在收敛过程中加快了收敛速度，收数后又能减小对均衡器参数的误调，具有更小的稳态剩余误差。 |
| 3. | Applying this model , the influence of minute cavity misadjustment on measured reflectivity of cavity mirrors in the stable resonator is analyzed , which is compared to that in confocal resonator
通过数值模拟，研究了这种稳定衰荡腔中，腔微小失调对反射率测量结果的影响，并与相同失调情况下共焦衰荡腔的测量结果进行了对比分析。 |
| 4. | According to propagation equation of gaussian beam and matrix of misadjust resonator , as well as principle of cavity ring - down method and data processing of fitting , a physical model of reflectivity measuring is set up for misadjustment of cavity length or angle of titled cavity mirrors
根据光束传输规律和失调腔矩阵方法，以及光腔衰荡法测量原理和曲线拟合方法，建立了腔长、腔镜角度失调下光腔衰荡法的反射率测量模型。 |
| 5. | Used as ring - down cavity , this stable resonator has , firstly , more influence of misalignment of cavity mirrors on its measured reflectivity , but less of length misadjustment ; secondly , shorter cavity length which advantageous in engineering ; finally , less diffraction loss and thus higher metrical precision
结果表明，这种稳定腔用作衰荡腔，测量结果受腔镜角度失调影响较大，而受腔长失调影响小；其长度较短，便于工程应用；衍射损耗较小，测量精度高。 |
| 6. | Among the adaptive beam - forming algorithms , the least mean square algorithm is widely used because it has a simple configuration and it is apt to come true and have nice convergence . on the other hand , it has a disadvantage that it converges slowly and there is a conflict between the fixed step and the convergence pace or the error in stabilization . so people have developed many improved least mean square algorithms which generally start from convergence , stabilization , misadjustment , and robustness and come to a formula about variational step in the end
在自适应波束形成算法中，最小均方( lms )算法因结构简单，易于实现，能稳定收敛而得到广泛应用，但它也存在收敛速度受限的缺点：固定步长因子无法解决收敛速度和稳态误差之间的矛盾。因此，人们提出了各种改进的最小均法算法来解决这一问题。改进的最小均方算法通常从如何改进收敛速度、稳态误差、失调量和鲁棒性等指标上出发，最后在新算法最终表达式中的步长公式上变化。 |
| 7. | The main works of this paper can be summarized as follows : 1 . in this paper , the inherent limitation of cma is studied which greatly affect the convergence properties , variable step size thoeries is put into cma , and several variable step size cm blind equalization algorithm is proposed which can overcome the tradeoff between convergence rate and misadjustment
本文的主要贡献在于： 1 、本文对制约恒模算法收敛性能提高的因素做了深入分析，将变步长理论应用于恒模算法，得到了一系列恒模改进算法，克服了恒模算法收敛速度和收敛精度之间存在的内在矛盾。 |
| 8. | Computer simulation results show that the proposed algorithm reduces the signal distortion and the reverberation which are caused by misadjustment errors in the adaptive filter and the correlated component of the speech in the reference signal compared with a conventional adaptive noise canceller ( anc )
仿真结果证明nanc算法有效克服了影响传统自适应噪声抵消系统( anc )性能的一些瓶颈，如两输入中的非相关噪声，参考输入中的信号成分与自适应滤波器失调误差而产生的信号失真、回响等情况。 |
| 9. | The constant modulus algorithm ( cma ) is the most widely used algorithm in digital communication systems due to its simplicity and robustness . in this paper we analysis the inherent limitation of cma which lead to a tradeoff between convergence rate and misadjustment , and propose several variable step size cma by putting variable step - size theories into cma . the convergence performance of the proposed algorithms is illustrated by computer simulations
本文对数字通信系统中广泛应用的bussgang类盲均衡算法? ?恒模算法( cma )进行了深入研究，分析了制约其性能进一步提高的因素，将变步长理论应用于恒模算法，提出了一系列恒模改进算法，并通过计算机仿真对改进算法的收敛性能进行了验证。 |
