将采样的方法应用于数字接收机中,可以在一定条件下降低采样速率,同时增加接收机的瞬时带宽。
Subnyquist sampling applied in digital receivers can reduce sampling rate of ADC and increase input band width of digital receivers under given conditions.
我们设计实现了片内高速异步fifo以降低采样率,仿真结果表明资源使用合理且访问时间很小。
We have designed an in-chip high speed asynchronous FIFO to reduce the sample rate, the simulation results shows it can be used to reduce system resource cost and it has very low access time.
介绍了用滤波器组重构多阶采样信号的原理,并且利用多阶采样特殊的重构原理以及在降低采样率上的优势,介绍了多阶采样在频率选择上的应用。
By using the special reconstruction principle and the superiority in decreasing sampling frequency, the application of periodically nonuniform sampling in frequency selection is also presented.
但采样频率过高会增加处理的数据量,从而降低泄漏检测的速度。
But the high frequency of sampling will result in the increase in data collecting, thus reduce the velocity of leaking detection.
在确定候选椭圆时,最大限度地减少随机采样点数?剔除更多的非椭圆点,降低了无效采样,减少了无效计算。
When determining a candidate ellipse, the number of points sampled randomly was maximally reduced, more non-ellipse points were eliminated, and therefore useless sample and calculation were reduced.
试验结果表明:该算法在获得与级联解码器-下采样-编码器几乎一致的视频质量情况下,大大地降低了计算复杂度。
Experimental results show that the complexity of our proposed algorithm is much less than that of the cascaded decode-encoder scheme, while the quality of video almost keeps the same.
在图象匹配的过程中应用亚采样模板有效地降低了该方法的计算量。
In the process of image matching, a sub sample stencil is used by this multi tracing vector estimation method in order to reduce the quantity of calculation.
传统的放大技术以采样定理为基础的,在对图像处理中都存在一定的缺陷从而降低了图像的质量。
Conventional amplification technique is based on Ngquist sampling theorem; both there are some defects which reduces the quality of the image in the image processing.
采用这种结构大大降低了采样速率和数字信号处理的速度,对硬件性能要求低,比较容易实现。
The structure reduces the rate of sampling and the speed of digital processing, and requires low-performance hardware, which can be realized easily.
可以降低生产心电类产品的成本,提高采样新能。
ECG can reduce the production cost of products, improve Sampling can be.
经拉伸处理和窄带滤波的目标信号带宽大大降低,数据采样率也大大降低,因此计算量减小,利于工程实现。
The bandwidth of target signal after stretch processing and narrowband filtering, the data sample ratio and computing burden are reduced greatly and the method is easy for engineering implementation.
通过实验分析表明,该算法明显地加快了大事务数据库中采样的速度,从而降低了CPU时间,而且具有很好的可扩展性。
Experimental comparison with the previous work indicates that it accelerates the sampling speed in the large transaction databases which reduces CPU execution time, and possesses a good scalability.
数量 较大时,提出网格中心法和网格采样法降低计算复杂度。
The method of grid center and method of grid sample are presented to lower the calculation.
由于各种原因,有时出现不该采样时的误启动,从而降低了仪器的使用寿命。
However, due to different factors, the samplers sometimes mis operated, so that he lifetime of the samplers were greatly reduced.
该方法采用DDPF估计机器人路径,采用DDF估计陆标位置,同时采用可选重采样以降低样本贫化的概率。
This method adopted DDPF to estimate the path of robot and DDF to estimate the landmark position. It also adopted selectable resample to lower the probability of sample deletion.
目的调查喉头喷雾器使用前后的污染状况,探讨有效的消毒方法以降低医院感染发生率。方法按《消毒技术规范》规定方法进行采样及消毒,并进行统计。
Objective to investigate the bacterial contamination of throat spray before and after using, so as to explore satisfactory disinfection methods to decrease the rate of hospital acquired infection.
用钻屑量指标预测煤与瓦斯突出时,由于采样装置落后和操作不规范等原因,导致预测结果可靠性降低。
As result of backward equipment and wrong operation, the forecast results become unreliable when the index of drilling yields is used in forecasting coal or rock outburst.
综合孔径雷达(SAR)实时成像处理器,在满足分辨率的情况下,通过预滤波和降采样的方式降低数据率来满足系统处理带宽的要求。
Under the condition of meeting resolution, the SAR real-time imager can satisfy the demands of the processing band by pre-filter and down-sample.
当连续图像信号的频带处于一个圆形区域之内时,正六边形点阵结构的采样密度比矩形点阵结构的采样密度要降低13。
However, when the signal is a circularly band-limited, the minimum sampling density for a hexagonal sampling lattice is 13.
稀土元素的氧化物离子产率随入射功率和采样深度增加,载气流速减小而降低。
Oxide ion yield of the rare earth elements (REE) decreased with the increasing of RF power and the sampling depth, or with the decreasing of carrier gas flow rate.
由于采样速率、滤波器转折频率、建立时间、群延迟和输出字速率与外部时钟频率呈比例变化关系,因此这些参数也会相应降低。
The sample rate, filter corner frequency, settling time, group delay and output word rate will be reduced also, as these are proportional to the external clock frequency.
对AM信号进行峰值采样可以直接获得基带信号的信息,对PS K信号进行变频采样可以降低其载波频率。
By peak value sampling the information of baseband signal can be obtained from an am signal directly. By frequency conversion sampling the carrier wave's frequency of a PSK signal can be cut down.
当连续图像信号的频带处于一个圆形区域之内时,正六边形点阵结构的采样密度比矩形点阵结构的采样密度要降低13.4%。
However, when the signal is a circularly band-limited, the minimum sampling density for a hexagonal sampling lattice is 13.4% less than that for a rectangular sampling lattice.
当连续图像信号的频带处于一个圆形区域之内时,正六边形点阵结构的采样密度比矩形点阵结构的采样密度要降低13.4%。
However, when the signal is a circularly band-limited, the minimum sampling density for a hexagonal sampling lattice is 13.4% less than that for a rectangular sampling lattice.
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