Apparatus and method for measuring received singal strength indicator using simple hardware architecture, and recording medium storing program embodying the same method

The present invention relates to a recording medium to implement a simple RSSI (Received Signal Strength Indicator) measurement apparatus and method, a program implementing the method are stored. The RSSI measurement apparatus, which is produced in the case of approximating to the analog / probability density function a Gaussian (Gaussian) with zero mean of the input signal and the output signal of the digital converter for quantizing the I-channel signal and Q channel signal from the A / D converter based on a second relation between the between the variance of the output signal and the variance of the input signal a first relationship, and power and variance of the probability density function of the random variables of the Gaussian, the analog power in the analog / digital converter input / is calculated by using the signal at the output of the digital converter is determined by the received signal strength. According to the invention, the hardware complexity is reduced because it does not perform a square operation for each sample of the signal received through the receive antennas. In addition, the close RSSI measurement than the real is performed by measuring the RSSI of the connector on the receiving antenna. In addition, an accurate value of the measured RSSI to know how many Watt or mWatt. RSSI, ADC, receive signal strength, an analog / digital converter, a Gaussian, a probability density function,