SU744707A1 - Device for evaluating fidality of signals with pulse-time modulation - Google Patents

Description

The chain of the invention is to improve the accuracy of assessing the reliability of signatures. The goal is achieved by the fact that the device containing the receiver, the first output of which is connected to the input of the gate generator through the recovery unit of the reference pulses, the analyzer, the output of which is connected to the input of the processing unit, introduces the generator of signs of falsity of the reference pulses and the generator of signs of falseness of the measuring pulses the outputs of which are connected respectively to the perzim and second inputs of the analyzer, the second output of the receiver and the first output of the fragment generator are connected respectively to ne vym and a second input of the reference pulse signs falseness, the third receiver output and the second output of the tup CWA wo / respectively to the first input '.vtorym input of pryzya- Cove falsity of measuring pulses. FIG. 1 shows a block diagram of the device; in Fig. 2, the time diagrams of the lMbI5 indicate the | {e of his work. The device for monitoring reliable signals contains receiver i, unit 2 for restoring reference pulses, driver 3 gates, driver 4 signs Falsity of reference pulses, driver 5 signs false measurements Sensor pulses, analyzer b, unit 7 processing pulses. The device works as follows ... Using the raised telemetry signal of receiver 1 (Fig. 2), unit 2 of the recovery of reference pulses ensures the formation and narrowing of pulse pulses, and the driver of 3 gates, using this sequence, generates gates of mountain pulses (Fig. 2). , 6) and naMepra-ejibRbix pulse gates (Fig. 2, c), corresponding to interlaces, from the output of the receiver 1 a full telemetric signal (PTS), distorted by noises (Fig. 2, a),

Claims (2)

The inputs of the formers 4 and 50nos of the noise component are unambiguously 5. In both formers, the output of the analyzer is shown to be injected from the received PSFR and the output of this Kygo signal. time intervals, the equal intensity can be expressed in terms of the duration of the corresponding stro any other convenient for the processing unit (Fig. 2d, e). Depending on the intensity, the form (for example, in the form of an estimate of the quality in the linkage of the perversion of the distortion of the readings P, /., The signal pulses (opornge and measurment; the mean square noise level of the noise)), etc. ). 074 more or less number of interfering (false). Accordingly, during a fixed time interval (e.g., polling cycle), the number of intervals affected by spurious pulses increases or decreases. On the basis of counting the number of pulses recorded in the corresponding gating intervals, both formers generate impulses — signs of falsity (FIG. 2e, g) if dba and more impulses are recorded in the interval of the corresponding gate (at least one of them will be false). The analyzer 6 uses two streams of signs of falsity to determine the current values of the confidence criterion, for example, estimating the probability of distortion of individual samples or the root-mean-square noise level of the communication channel. The obtained reliability estimates can be used in the selection of processing algorithms for monitoring the performance of the system at the sensitivity limit of the receivers, as well as for comparing information losses in two or more systems. Obtaining estimates of the reliability of the received signals and their subsequent use in processing block 7 is made not based on the results of processing by the PTS analyzer, but by analyzing two streams of signals indicative of falsity of the SPPL. Formally, the MSF are two irregular flows, and it is in the characteristic of the irregularity, or rather, in the intensity of the flows, information about the level of noise in the channel is concluded. The intensity of any of the streams of siggals — signs of falsity and total in total (FIG. 2, h) is the number of pulses at a fixed observation interval; it uniquely reflects the intensity of noise in the channel. The sequence of operations provided by all blocks and connections entering the device, ensures that the signal-to-noise input mixture parameter of interest is intense. Thus, although the full telemetry signal is not directly used to control the processing algorithms, the intensity of its noise the components that cause the information losses in the channels, according to the block-: device's heme, are necessarily present (in direct or transformed form) at the input of the processing unit. It is the intensity of noise (hey components determines the assessment of the reliability of signals and the controlling effect on the algorithms for processing telemetry signals. The invented device, calculating the estimate of the probability of distortion of the reference and measurement pulses false, allows us to reject a number of blocks intended for analysis the number of false markers & prototype, since it automatically and with greater accuracy performs these functions. A joint analysis of the number of registered impulses in the gates of the reference and scale intervals allows It helps to increase the sample size by a factor of two while fixing the averaging interval. This makes it possible to increase the efficiency and accuracy of analyzing real VIM signals by 1.5–2 times. The proposed device is able to unambiguously determine the quality of VIM signals, even if the parameters of the pulses themselves are not fairly stable (amplitude, backward front), since the device does not analyze the effect of noise on a parameter or group, but evaluates the ability of pulses to be detected against the background noise. Apparatus of the Invention A device for estimating a DST signal of a signal with a time-pulse modulation, comprising a receiver, the first output of which is connected to the gate generator input, through the reference pulse recovery unit, and the analyzer whose output is connected to the input of the processing unit e with the fact that, in order to improve the accuracy of the device, a shaper of signs of falsity of reference pulses and a shaper of signs of Falsity of measuring pulses are entered, the outputs of which are connected to the first and second th. The analyzer inputs, the second output of the receiver and the first output of the gate generator are connected to the first and second inputs of the primary conditioner for the falsity of the reference pulses, the third output of the receiver and the second output of the gateformer are connected with the first and second formers of the falsehood signs of the measurement pulses. Sources of information taken into account in the examination 1..The author's certificate of the USSR No. 342211, cl. C 08 C 19/28, 08,12,69, 2. USSR author's certificate number 539308, class ,. Q 08 25/00, 1976 (prototype), -At