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Chirp Timing

Chirp timing parameters define the temporal structure of the waveform, including start, up, down, and stop periods

 

 

 

 

 

 

1. Chirp Timing Parameter

A chirp consists of four timing parameters.

Its total duration, defined as the chirp cycle (or chirp period), represents the complete time of one chirp.

 

 

 

 

 

 

2. Chirp Timing Example

Chirp start and chirp stop timings have limited direct impact on measurement performance;

however, they can indirectly affect system-level parameters such as frame timing and chirp rate.

In contrast, chirp up, chirp down, and chirp cycle are directly related to radar measurement performance.

 

 

Parameter Description  Limitation by System/HW  
Start time initial delay before the chirp begins around 20 us @min  
Up time frequency ramp-up duration    
Down time frequency ramp-down duration around 150 us @when SAW waveform  
Stop time idle time before the next chirp around 410 us @min  

 

 

 

 

 

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