Recent Advancements in Autonomous Robots and Their Technical Analysis

Table 5

Summary of all previously proposed control laws for all unmanned vehicles.

References	Limitations/shortcomings									Vehicle type
	TD	OS/US	SC	CE/EN	GL	SSE	EHD	PC	T_proc
[7]		✓	✓		✓					UUVs with manipulators
[39]								✓	✓
[11]		✓		✓	✓
[6]
[43]						✓	✓	✓	✓
[40]				✓			✓	✓	✓
[38]		✓		✓
[16]			✓				✓	✓	✓
[14]				✓	✓
[5]			✓				✓
[13]	✓				✓	✓
[53]		✓		✓						QUAVs with manipulator design
[50]						✓			✓
[52]		✓
[48]				✓	✓		✓	✓	✓
[49]			✓
[47]		✓
[26]	✓	✓				✓			✓
[46]	✓	✓		✓	✓
[27]			✓		✓	✓
[45]									✓
[44]			✓	✓
[56]	✓						✓	✓	✓	UGV with manipulator design
[58]			✓		✓	✓
[29]		✓
[59]	✓							✓
[28]		✓		✓		✓			✓
[31]					✓
[30]	✓		✓						✓
[33]							✓	✓	✓

TD: time delay. SC: slow convergence rate. GL: gimbal lock. EHD: expensive hardware. T_proc: process time. OS/US: over/undershoots. CE/EN: chattering effect/external noise effect. SSE: steady-state error. PC: power consumption.