| 1. | In the given precondition and meeting adaptive conditions , music algorithm can accurately estimate signal ’ s doa , and has very high resolution ability and estimation precision
算法在假设前提下并满足适应条件时可以精确地估计出信号的doa ,具有很高的分辨力和估计精度。 |
| 2. | The new method and original bayesian method are compared with the other two methods in the aspects like angular resolution ability , performance in low snr
新方法不仅具有很高的分辨能力，而且在低信噪比时也具有西北工业大学硕士学位论文摘要比mle和music更加优越的估计性能。 |
| 3. | Because the calculation and display of visual is digital signals , the targets picture may be present to mixing and disappearing , when it is farther and its picture on the screen outrun the display resolution ability
由于视景环境的解算和显示是数字信号处理机制，当靶标较远时，靶标的图像如超出屏幕显示分辨率显示能力时，出现图像丢失和混叠现象。 |
| 4. | Its angular resolution ability under different snr is summarized comprehensively . the highest resolution of bayesian method is 1 / 18 bandwidth of the beam main lobe i n high snr ( 20db ) and 1 / 3 bandwidth in low snr ( - lodb )
在高信噪比( 20db )下贝叶斯高分辨方位估计方法的角度分辨门限高达1 18波束宽度，低信噪比( - 10db )下也能达到1 3波束宽度。 |
| 5. | Its angular resolution ability under different snrs is summarized comprehensively . the effects on its performance by the factors such as snapshots and number of array sensors are investigated and their relations are also quantitatively analyzed
深入研究了bmode方法的估计性能，得到其在不同信噪比下的角度分辨门限以及不同的快拍数和阵元数对其性能的影响。 |
| 6. | 2 presentation of the structure and principle of smart antenna , and concern the application of smart antenna to mobile communication . 3 introduce music algorithm , and then demonstrate its resolution ability to doa of uncorrelated signals with computer simulation
二介绍智能天线的结构及其工作原理，然后论述它在移动通信中的作用，并说明doa估计在智能天线以及移动通信中的作用，从而引出music算法。 |
| 7. | 3 . the performance of multiple beamforming system and high - resolution methods are studied when the powers of sources are different . it is shown that high - resolution methods are not sensitive to the power difference of sources and so possess superior resolution ability over beamforming methods in this condition
三、深入研究了多波束系统和高分辨定向方法在不等强度目标源情况下的估计性能，得出如下结论：高分辨定向方法对目标源强度差异不敏感，所以在对不等强度源的分辨性能方面具有多波束系统不可比拟的优越性。 |
| 8. | Through matlab simulations , this improved algorithm can not only achieve the same resolution ability as the conventional music algorithm in ideal conditions , but also acquire the resolution ability and estimation precision that music algorithm can ’ t obtain in the nonideal condition of so - called signal eigenvalue leakage
通过matlab仿真,该改进方法不仅可以在理想情况下取得和传统music算法一样的分辨力,而且在所谓的信号特征值泄露的非理想情况下可以取得传统music算法不能达到的分辨力和估计精度,同时一定程度上减小了运算量。 |
| 9. | 4 put forward the modified music algorithm , and compare its resolution ability with music algorithm by computer simulation . the comparison results show that the modified music algorithm not can estimate the doa of signals " that music algorithm cannot , but also can improve the estimation performance when estimating uncorrelated signals " doa
四介绍修正music算法，先从公式进行推导，然后再进行计算机仿真，并与music算法的仿真结果相比较，从而说明修正music算法不仅能估计出空间互不相关信号的doa ，还能有效估计出相干信号以及相隔比较近的小信噪比信号doa 。 |
