SU637689A1 - Signal retrieval device - Google Patents

Description

I

The invention relates to radar and can be used in devices for the primary processing of radio citra shafts.

A signal searching device is known comprising a range coding unit, a first buffer memory unit, an operation unit, a main memory unit and a control unit, wherein the output of the range encoding unit is connected to the first input of the first buffer memory unit and the control unit is associated with inputs control n outputs of the indiadium of 5P1 and all blocks of the device ij.

The known device performs a successively parallel search for a signal in which the number of cells of the base memory block is chosen to be less than the number of processed, elementary areas of the distance, since with a small number of targets at a distance not all the channels of the elementary areas of the range are involved, in the case of atom sorting. data and. the lack of signal is produced only

after recording into the main memory block of all information for N periods of the following signals.

However, the known device has a low bandwidth due to the loss of time spent accessing the main and memory blocks during the recording and reading of input data, most of which does not contain information about the targets.

The purpose of the invention is to increase throughput.

Claims (2)

To do this, a second block of buffer memory is inserted into the proposed device for searching for a signal, the output of the first block (epHoA) of the array is connected via an operational block to the input of the main memory block, the output of this block is directly connected to the second input of the first block of the buffer memory, and the second input of the operation unit is through the second block of the buffer memory, the control input and the output of the status indicator of which are connected to the control unit, and the first block of the buffer memory is completely executed in the form of the assostam of the memory unit Ha rtezhe predstavde a block circuit diagram of the proposed tron devices. The signal searching device comprises a range encoding unit 1, a first buffer memory unit 2, an operation unit 3, a main memory unit 4 to a control unit 5, and an output. unit 1 is connected to the first input of the first block Z, and control unit 5 is connected to the control unit and the status indication outputs of all units of the device, the second buffer memory unit 6, the output of the first unit 2 is connected via onepaiDioH unit p to the input of unit 4, output the latter with the second input of the first unit 2 directly, and with the second input of the operational unit 3 through the second one. the buffer memory unit 6, the control input and the output of the indhadi state are connected to the control unit 5, and the first unit 2 is partially or fully implemented as an associative memory block. The device search signals works as follows. In the first period of the follow-up of the Sondi-Odir-Siptl {the information data on the value of the dability from block 1 of the range coding and magnitude greater than the video signals from the Output of the preceding 1-unit toaan, go to block 4 of the main -pam. In the second period of the following signals, simultaneously with the reception of the information layers in the first and second blocks 2 and 6 of the buffer unit / 1 tz, the information available there from block 4 of the main memory, in the first block 2, the codes of the number of elementary sections are stored. , and in the second block there are codes for all kinds of videos. In the first block 2, the codes of the numbers of the elementary parts of the range of the old and newly received data are compared with one another. In the case of coincidence, in the operational unit 3, the signal codes corresponding to this elementary section are accumulated, and the record is accumulated in block 4 of the main memory In this case, in the event of a mismatch, this is received, e; on the second, the nejisoro block 2 of the buffer memory is received through the operation unit 3 in the unit 4 of the main memory without accumulation. In the following, the cycle of the search device is repeated. Consequently, before the npii into block 4, the help of the operating unit 3, the first and second blocks 2 and 6 sorts out the old and new data, drops codes of signals having a single range, and makes a decision about the presence or absence of a signal element range. Since the sorting is carried out in small arrays in high-speed blocks 2 and 6, the task of searching and accumulating signals in block 4 is solved in real time. Thus, the introduction of the second block 6 of the buffer memory and the execution of the first block 2 of the buffer memory partially or completely as an associative memory block reduces the likelihood of the first block 2 of the buffer memory overflowing both by speeding up the search operations and ordering data accumulation, so at the expense of discarding one's information without writing it to block 2) of the memory, and consequently, increases the throughput of the proposed device. Claim 1. A signal search device comprising a range coding unit, a first buffer memory unit, an operation unit, a main memory unit and a control unit, the output of the range coding unit connected to the first input of the first bu er memory unit, the control unit is connected to the control inputs and outputs and the wider state of all the units of the device, characterized in that, in order to increase the capacity, the second block of the b-spherical memory is inserted, while the output of the first block of the buffer memory of the connectedia an operating unit with an input to the main memory unit, the output of this unit is connected to the second input of the first block of the buffer memory directly, and to the second input of the operational unit through the second block of the buffer memory, the control input and the output status display of which are connected to the control unit. 2. The device according to claim 1, 1, of which it is the fact that the first block of the buffer is partially or fully implemented as an associative block of memory. Sources of information taken into account in the examination; 1. Samsoienko S, B, Digital methods for optimal processing of radio signals, M, Voenizdat, 1968, fig. 4.32, s. 132.