Jiaqi Shao, Honglei Chen, Ruijun Ding. Linear APD hybrid time-of-flight ranging model and readout circuit design[J]. Infrared and Laser Engineering, 2023, 52(9): 20220892
- Infrared and Laser Engineering
- Vol. 52, Issue 9, 20220892 (2023)
Fig. 1. Four-phase ranging integration situation
Fig. 2. Circuit system structure
Fig. 3. Pixel circuit
Fig. 4. Hybrid ranging model
Fig. 5. Two phase ranging
Fig. 6. Effect of ambient light on precision
Fig. 7. Effect of clock frequency on precision
Fig. 8. Main circuit layout
Fig. 9. Linearity test
Fig. 10. (a) Hybrid ranging results; (b) Accuracy error of the 29th subperiod
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Table 1. Comparison of performance in this paper with advanced designs
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