【读书2】【2014】基于MATLAB的雷达信号处理基础（第二版）——基本雷达信号处理综述(1)

图1.18说明了通用雷达信号处理器中的一种可能的操作顺序。

Figure 1.18 illustrates one possiblesequence of operations in a generic radar signal processor.

Figure 1.18. 通用雷达信号处理器操作流程的一种示例One example of a generic radar signal processor flow of operations.

这种操作顺序并不是唯一不变的，具体的操作内容也不是详尽的。

The sequence shown is not unique, nor isthe set of operations exhaustive.

此外，信号数字化的位置在不同的系统中是不同的，它可能出现在杂波滤波输出之后。

In addition, the point in the chain atwhich the signal is digitized varies in different systems; it might occur aslate as the output of the clutter filtering step.

信号处理操作通常可以分为信号调理和干扰抑制、成像、检测和后处理。

The operations can be generally groupedinto signal conditioning and interference suppression; imaging; detection; andpostprocessing.

还必须针对雷达信号的具体特点进行处理。

Radar signal phenomenology must also beconsidered.

在接下来的几个小节中，将描述该信号处理链中每个模块的基本目的和操作。

In the next few subsections the basicpurpose and operation of each block in this signal processing chain isdescribed.

1.5.1. 雷达时标

1.5.1. Radar Time Scales

雷达信号处理在时间尺度上进行，范围从小于1纳秒到几十秒或更长（10到12个数量级）。

Radar signal processing operations takeplace on time scales ranging from less than a nanosecond to tens of seconds orlonger, a range of 10 to 12 orders of magnitude.

不同类别或级别的操作倾向于在显著不同的时间尺度上操作。

Different classes or levels of operationstend to operate on significantly different time scales.

图1.19说明了信号处理操作与时间尺度之间的一种可能关联。

Figure 1.19 illustrates one possibleassociation of operations and time scale.

Figure 1.19. 描述雷达信号处理的时间尺度范围Illustration of the range of time scales over which radar signalprocessing is performed

——本文译自Mark A. Richards所著的《Fundamentals of Radar Signal Processing（Second edition）》

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