讨论了信号时长和差拍频率对雷达作用距离的影响；
The influence of time length and beat frequency on radar range is discussed.
相控阵雷达作用距离决定于雷达技术参数与雷达工作方式的控制参数。
Phased array radar detection range depends on radar technical parameters and radar operation mode control parameters.
根据雷达回波信号的分形特性，分析提出了雷达作用距离也具有分形特征。
The fractal feature of radar range is introduced based on the fractal feature of radar echo signal.
此外，为了解决雷达作用距离和距离分辨力之间的矛盾，脉冲压缩机技术在现代雷达系统中被广泛采用。
Moreover, the pulse compression radar has been widely used in practice because of its far detection range and good range resolution.
歼10是高技术，中型战机，比枭龙更大，载弹量更多，航程更远，雷达作用距离更远，所以价格也比枭龙贵。
J10 is high tech, medium weight plane, which is alot bigger plane than jf17, so it has long range, longer radar, carries alot more weight etc. This also makes it alot expensive than jf17.
脉冲压缩有效地解决了雷达作用距离与距离分辨率之间的矛盾，可以在保证雷达在一定作用距离下提高距离分辨率。
Pulse compression effectively solve the radar range and distance between the resolution, Radar can guarantee a certain role in enhancing distance from the resolution.
现代雷达系统广泛采用脉冲压缩技术，在确保雷达作用距离和速度分辨力的前提下，采用大时宽带宽积脉冲压缩信号提高距离维分辨力。
Pulse compression technique is widely used in modem radar systems. Large time duration-bandwidth product signals are used in pluse compression technique to improve the resolution in range domain.
根据分析所得到的各种衰减量，可以推导出工作于此波段的近程雷达受作用距离的影响及抗干扰性能。
Based on the all attenuation, we can find the short range radar worked in this band is affected by action distance and interfere.
这一雷达系统可在最大作用距离上辨别出船只、通气管和潜望镜。
The radar system can distinguish the ships, the air tube and the periscope at its largest operation range.
典型的超宽带雷达系统发射的是冲激脉冲信号，具有很大的带宽，但限制了系统的作用距离。
A typical Ultra Wideband Radar system emits impulse signal, which has wide band, but limited operating range.
雷达的最大作用距离是雷达的一项关键指标。
激光成像雷达能成距离像和强度像，可以很好地完成目标辨认任务，但其缺点是作用距离较近。
Laser radar can present range image and intensity image, so it can accomplish the detection mission, but it also have flaw, the function of the range is very near.
合成与积累可以提高输出信号的信噪比，从而增大信号检测概率，增加雷达的作用距离。
Synthesis and integration can improve the signal-to-noise ratio (SNR) of output signal, thus increasing the signal detection probability and extending the radar range.
激光雷达系统的作用距离由下列因素决定：脉冲能量、脉冲宽度、光束发散角、大气衰减、目标反射率和接收机灵敏度等。
The operating distance of a laser radar system is determined on pulse energy, pulse width, beam divergence angular, atmosphere attenuation, target reflection, receiver sensitivity and so on.
采用距离分段加权技术，可以减小加权引起的信噪比损失，从而提高了雷达的作用距离。
Range subsection weighting technology is used to minish SNR loss caused by weighting, so as to increase radar range.
脉冲压缩雷达体制很好的解决了在普通脉冲雷达中作用距离和分辨能力之间的矛盾，因此脉冲压缩技术广泛用于雷达、声纳等系统。
The technique of pulse compression is widely applied in radar and sonar systems because it resolves the contradiction between action distance and differentiate.
在给定雷达的检测概率和虚警概率后，系统输出信噪比直接影响雷达的作用距离。
Given detection probability and false alarm time of a radar, the system output SNR would affect the radar's effective rang directly.
大气环境对电磁波的吸收衰减作用使雷达的作用距离减小，大气异常折射现象使雷达的作用距离增大或减小。
Atmosphere absorbs the electromagnetic wave so that the radar detection distance be reduced, and the atmospheric unusual refraction changes the radar detection distance too.
因此，理论计算结果与雷达的实际作用距离之间存在一定的差距。
Therefor there are some difference between the results of theoretic and realistic. We can find more precise result through actual flying targets.
机载雷达的作用距离与空舰导弹的射程之间的匹配是弹机协调中的关键问题之一。
The range matching problem between air-to-ship missile and airborne radar, which is the key to the cooperation between air-to-ship missile and its carrier is studied in this paper.
近年来，机载无源相控阵雷达由于功率大作用距离远受到了越来越多的关注。
In recent years, people have been focusing on the Airborne Passive Phased Array Radar Antenna because of their large role in distance.
为了增大雷达的作用距离，脉冲压缩是现代中远程警戒雷达通常采用的一项成熟技术。
To increase the radar detection range, pulse compression is commonly adopted as a mature technology in modern long-distance guard radar.
为了增大雷达的作用距离，脉冲压缩是现代中远程警戒雷达通常采用的一项成熟技术。
To increase the radar detection range, pulse compression is commonly adopted as a mature technology in modern long-distance guard radar.
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