Question

is there any thing like one way oscillatory motion

Answer 1

Explanation:

Oscillatory Motion

Virtually all key mathematical concepts in DSP can be directly derived from the study of oscillatory motion. In physics, there are a number of examples of oscillatory motion: weights on springs, pendulums, LC circuits, etc. In general, however, the simplest form of oscillatory motion is the wheel. Think of a point on the rim of a wheel. Describe how the point on the wheel moves mathematically and the foundations of DSP are in place. This statement may seem somewhat dramatic, but it is truly amazing how often this simple fact is overlooked.

The natural place to begin describing circular motion is with Cartesian coordinates. Figure 4.2 shows the basic setup. The origin of the coordinate system is, naturally, where the x and y axes intersect. This point is designated as P(0,0). The other interesting point shown in the figure is P