This paper presents an extended version of a previous study on indoor positioning technologies, focusing on Ultra Wideband (UWB) systems. It provides a comprehensive survey of existing indoor positioning technologies, a detailed comparative analysis of UWB positioning technologies, and an analysis of strengths, weaknesses, opportunities, and threats (SWOT) to evaluate the current state of UWB positioning. The paper argues for further research into this challenging problem space. Indoor positioning is crucial for various applications, including military, civilian, disaster relief, and peacekeeping missions. Unlike outdoor positioning, indoor positioning requires higher precision due to signal reflections and scattering from objects. UWB is an emerging technology in indoor positioning that offers better performance compared to other technologies. It uses time difference of arrival (TDOA) of RF signals to determine distance between reference points and targets. UWB is not dependent on line-of-sight and is less affected by interference from other devices. It is also cost-effective and consumes less power than other solutions. The paper discusses various indoor positioning technologies, including RFID, infrared, ultrasonic, Zigbee, WLAN, cellular-based, Bluetooth, dead reckoning, image-based, and pseudolites. Each technology has its own advantages and disadvantages, and the choice of technology depends on the specific application requirements. UWB is considered one of the most accurate technologies for indoor positioning, with the potential to achieve sub-centimeter accuracy. The paper also discusses signal modulation techniques used in UWB, such as pulse position modulation (PPM), on-off keying (OOK), pulse amplitude modulation (PAM), and pulse width modulation (PWM). These techniques help in improving the accuracy of UWB localization. The paper also covers the policy and regulation of UWB use, including frequency allocation and power spectral density requirements in different countries. The paper presents a detailed review of UWB positioning algorithms, including time of arrival (TOA), angle of arrival (AOA), received signal strength (RSS), time difference of arrival (TDOA), and hybrid algorithms. These algorithms are compared based on accuracy, environment, estimation technique, range, and purpose of use. The paper concludes that UWB is a promising technology for indoor positioning and that further research is needed to explore its potential in various applications.This paper presents an extended version of a previous study on indoor positioning technologies, focusing on Ultra Wideband (UWB) systems. It provides a comprehensive survey of existing indoor positioning technologies, a detailed comparative analysis of UWB positioning technologies, and an analysis of strengths, weaknesses, opportunities, and threats (SWOT) to evaluate the current state of UWB positioning. The paper argues for further research into this challenging problem space. Indoor positioning is crucial for various applications, including military, civilian, disaster relief, and peacekeeping missions. Unlike outdoor positioning, indoor positioning requires higher precision due to signal reflections and scattering from objects. UWB is an emerging technology in indoor positioning that offers better performance compared to other technologies. It uses time difference of arrival (TDOA) of RF signals to determine distance between reference points and targets. UWB is not dependent on line-of-sight and is less affected by interference from other devices. It is also cost-effective and consumes less power than other solutions. The paper discusses various indoor positioning technologies, including RFID, infrared, ultrasonic, Zigbee, WLAN, cellular-based, Bluetooth, dead reckoning, image-based, and pseudolites. Each technology has its own advantages and disadvantages, and the choice of technology depends on the specific application requirements. UWB is considered one of the most accurate technologies for indoor positioning, with the potential to achieve sub-centimeter accuracy. The paper also discusses signal modulation techniques used in UWB, such as pulse position modulation (PPM), on-off keying (OOK), pulse amplitude modulation (PAM), and pulse width modulation (PWM). These techniques help in improving the accuracy of UWB localization. The paper also covers the policy and regulation of UWB use, including frequency allocation and power spectral density requirements in different countries. The paper presents a detailed review of UWB positioning algorithms, including time of arrival (TOA), angle of arrival (AOA), received signal strength (RSS), time difference of arrival (TDOA), and hybrid algorithms. These algorithms are compared based on accuracy, environment, estimation technique, range, and purpose of use. The paper concludes that UWB is a promising technology for indoor positioning and that further research is needed to explore its potential in various applications.