• 不变随机向量(SIRV)非高斯杂波背景下,研究了多脉冲相雷达目标自适应检测问题

    In the clutter modeled as spherically invariant random vector (SIRV), the adaptive coherent radar target detection is addressed.

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  • 主要研究了动基线时差测量系统采用脉冲积累算法条件运动目标的有效检测问题。

    How to detect moving target in low SNR condition for moving-baselines time difference measuring system is studied, using multi-pulses coherent integration algorithm.

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  • L 297芯片产生脉冲信号信号作为极性桥式功率驱动电路的输入信号,放大驱动步进电机

    L297 chip generates pulse phase sequence signals of which the pulse width is adjustable. The signals are the input ones of dual bridge driving circuit and drive the stepper motor after amplification.

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  • 试验研究不同微弧氧化电压脉冲频率涂层微观形貌,涂层厚度组成影响。

    The effects of different oxidation voltage and pulsed frequency on microstructure, thickness and phase constitute of the coatings have been investigated.

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  • 提出一种由线性调频组合而成新型混合脉冲信号给出了其数学表达式处理方法及其模糊函数的表达式。

    According to a new type of mixed pulse compression signal, this paper discusses the mathematical expression, the way of processing and the expression of the ambiguity function.

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  • 本文介绍了一种可用于火控雷达的单脉冲有限天线系统

    A monopulse limited phase scanning antenna system for the fire-control radar at X-band is presented in this paper.

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  • 编码完成脉冲压缩的基础上,利用极化编码实现检测

    Phase coding is firstly used for pulse compression, then correlative detection is performed by polarization coding.

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  • 该文深入分析研究了高频脉冲交流环节逆变器稳态原理特性极性控制策略

    The steady principle of the inverter with a high frequency pulse AC link and the unipolarity phase shifting control strategy are investigated.

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  • 随机PD脉冲多普勒)引信一种较为新颖噪声调制引信体制

    The random binary phase code phasing PD fuze is a novel modulated system of noise.

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  • 论文讨论了脉冲压缩雷达两种典型雷达制式线性调频雷达编码雷达的干扰

    The jamming of two models of pulse compressed radar, Linear frequency coded radar and bi-phase coded radar, are studied in this dissertation.

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  • 脉冲多普勒(PD雷达先进的全参体制的雷达。

    PD radar is a kind of advanced pulse radar which using coherent processing.

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  • 分析了两循环脉冲震发动机工作过程爆震室内、特性,建立爆震壁温分布计算模型

    The heat transfer characteristics of the detonation chambers outer and inner wall were analyzed when the pulse detonation engine model was operated in the multi-cycle mode.

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  • 建立了微型脉冲推力器点火启动模型,模型中考虑了流动颗粒对推进剂表面冲击传热

    Ignition start-up model of impulse micro-thruster is established, considering two phase flow and impact heat transfer of particle on the surface of propellant.

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  • 采用双向窄脉冲介质阻挡气液两放电技术,大肠杆菌活效果进行试验

    The inactivation of Escherichia coli with bipolar pulsed dielectric barrier discharge in water-air mixture was studied experimentally.

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  • CP脉冲低频时,绕组平均电压平均电流低,电动机磁场储能较少,一定程度上克服了共振现象。

    When the frequency of CP pulses is lower, average voltages and currents of windings will decrease and magnetic field energy of motor is very little so as not to produce resonance.

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  • 脉冲多普勒雷达先进的全参体制雷达。

    Pulsed Doppler radar (PD radar) is a kind of advanced radar which using coherent processing.

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  • 研究了气液混合体中线线电极脉冲放电现象

    The pulse discharge phenomena of gas-liquid mixture in wire-wire gap are studied.

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  • 脉冲器中的时间常数不能忽略具有附加简单RC网络时,得到了系统稳定条件

    The stability condition for the system is obtained when the time constant in the pulse operated phase discriminator can not be neglected and with an additional simple RC network.

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  • 本文阐述极性采样倒编码数字脉冲压缩处理器参量CFAR特性

    The nonparametric constant false alarm rate (CFAR) property of digital polarity sampled phase reversal coded pulse compressors is described.

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  • 研究流量脉冲偏压薄膜结构沉积速率表面形貌薄膜硬度影响。

    The effects of the flow rate of oxygen and pulse bias voltage on the structure, deposition rate and the surface morphology of thin film were studied.

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  • 着重剖析控制系统产生触发脉冲的方案;

    The method how the trigger pulse series is generated and shifted is expounded in this paper.

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  • 介绍了一种采用脉冲接收机有限扫雷控跟踪系统的数字模型

    The mathematical model of the limited phase-sweeping radar using a single circuit monopulse receiver is introduced in the article.

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  • 该方法首先距离分辨单元方位向进行非积累然后利用类似单个脉冲扩展目标广义似然比检测器来实现高分辨率雷达检测

    First, each range resolving unit was accumulated non-inherently in azimuth, and then the detection of HRR target was done with the GLRT detector similar to that of the mono-pulse spread targets.

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  • 研究了多重逆变器的控制方法,采用逆推的方法确定单元触发脉冲通过多重叠加原理得到正弦波输出。

    A new control method of multiunit inverter is described, which determines the triggering pulse for each unit to obtain the sine wave output through multiple-phase shifting superimposition principle.

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  • 晶闸管触发器采用集成数放大器,触发脉冲形成根据交流电的各控制电压直接比较原理实现的。

    The shift trigger pulse of the thyristor trigger circuit with integration amplifier is generated by comparing directly principle of three-phase AC and shift-phase control voltage.

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  • 本文阐述了用于微波波段脉冲工作原理主要参数选择原则,并对其进行取样效率的理论分析。

    The operating principle and the choice of the main parameters for a new pulse phase detector used in UHF band is described. The sampling efficiency is discussed.

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  • 并且讨论脉冲参体制雷达目标回波信息以及目标信号的多普勒谱特性

    Then discussing the phase information and Doppler characteristic of target echo wave in the pulse Doppler phase radar.

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  • 一个高度敏感接收器每个反射脉冲转换,使其其他测量脉冲平均

    A highly sensitive receiver converts each reflected pulse to waves that are averaged with other pulse measurements.

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  • 数字化设计系统特点,系统最终生成spwm脉冲基于三正弦调制三角载波比较得到的。

    Digital design is the main character of this system. The three-phase SPWM pulses are generated through sine wave compared with triangular wave.

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  • 实验结果表明采用微机软件实现脉冲控制有效改善脉冲对称度,提高整流输出电压精度

    The experimental results show that the pulse shifting phase control by using software can improve effectively the pulse symmetry and the precision of the d. c. output voltage.

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