查询词典 receiver

Radio fuze jammer ; digital receiver ; double channel bandpass sampling ; polyphase filtering ; digital channelizing

无线电引信干扰机；数字接收机；双通道带通采样；多相滤波；数字信道化

Double channel bandpass sampling method for wide band IF signal is presented to settle the problem of blind zone,which exchanges one more sampling channel for simplification of clock circuit and band pass filter.As a practical reconnaissance receiver, real-time processing performance must be considered.Digital channelizing method lays the base of parallel processing by multi DSP chips and discarding of the redundant data resulting from double channel bandpass sampling.

针对带通采样存在着频率覆盖盲区的问题，提出了宽带中频信号双通道带通采样的方法，通过增加一个采样通道既解决了传统处理盲区方法中设计复杂采样时钟电路、高矩形系数滤波器的困难，还缓解了后续DSP处理压力。

The simulation results of receiver operating characteristic curve explain that the algorithm has very good detection performance.

由仿真结果给出的接收机工作特性曲线阐明了算法具有很好的检测性能。

We use receiver operating characteristic curve to evaluate the diagnostic value of sB7-H4 and CEA.

同时检测上述标本中CEA的含量，将两者的诊断效率进行比较。

A receiver operating characteristic curve was used to assess the performance of the Logistic regression model.

用ROC曲线法评价Logistic模型的预报能力。

Finally, receiver operating characteristic curves of the four index of blood lipid were used to predict the presence of carotid plaque.

最后对血脂四项指标绘制ROC曲线评价其对颈动脉斑块的预测价值。

The project will develop a bandpass sigma-delta analog-to-digital converter for digital audio broadcasting system in three years. In the first year, we had finished the system simulation for IF receiver using conventional high speed ADC and bandpass sigma-delta ADC, respectively. We also had done the analysis and design of high-order bandpass sigma-delta modulator structure. In this year, we have developed a coefficient synthesis method for high order bandpass sigma-delta modulator using high order filter transfer functions (inverse Chebyshev bandreject filter function).

本计划将在三年内发展一个能应用在数位音讯广播系统的带通sigma-delta类比/数位转换器(analog-to-digital converter，ADC)，在第一年度中我们分别以传统高速类比/数位转换器及带通SD类比/数位转换器的接收系统为例，并结合编码正交多工器(Coded Orthogonal Frequency Division Multiplex，COFDM)的技术，建立一套DAB系统模拟的方法，同时并研究有关高阶带通SD类比/数位调变器的架构及电路，并已成功开发出一个由高阶滤波器合成的高阶带通调变器。

Was established in January 1994, is the production, development of frequency / switch power transformers, matching transformer, IC card sensor coils, communications equipment receiver coil, Choke / depositors can, to linear inductance and Air Core coil, EMC filter frequency energy-saving system and the professional manufacturers.

金竹电子有限公司成立于一九九四年一月，是生产、开发工频/开关电源变压器、匹配变压器、IC卡传感器线圈、通讯设备接收线圈、扼流/存能、行线性电感、空芯线圈，EMC滤波器及变频节电系统的专业厂家。

Combined with the test of one kind of GPS receiver, this paper puts forward a method of evaluation on interior noise level using Chorology and Statistics and a new testing method by revolving the horizontal table-board between multi-sessions on the field of Mini-baseline.

论文结合某品牌GPS接收机检测实例，提出了GPS接收机内噪声水平分布统计的评价方法，以及在超短基线场内GPS接收机内噪声水平的全新检测方法－多时段旋转检测台法。

A receiver extracts the bit of watermark data from the selected bit position of the average value of the chrominance portion.

接收机从色度部分的平均值的选择比特位置中提取水印数据的比特。

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。